Public evidence profile · Checked June 2026

Lambert Heating & Renewables Ltd

PlumberCarshalton4.990 reviews · 1 independent public source
Credentials & registries
Which? Trusted Trader
Trust Score
55out of 100
Good record, gaps to check
  • Rated 4.9 from 90 reviews
  • Reviewed 10 months ago

Worth checking: WaterSafe

How this score is worked out
Rating4.9 / 5
Review volume90
Independent sources1 independent public source
Credentials1 credential shown

How this score is made up

What customers say38.3 of 60
Independent checks8.8 of 30
Track record8 of 10
See the independent checks
  • Licences and credentials0.6 of 8.3
  • Ways to reach them8.3 of 8.3
  • Reviewed on more than one site0 of 6.2
  • Registered company details0 of 4.1
  • Photos of their work0 of 2.1
  • Industry recognition0 of 1

Missing evidence lowers the score because we can't check it. It doesn't mean it doesn't exist. Claiming a profile never changes the score. Evidence context, not a guarantee of workmanship.

Call 020 8226 0000
Trust at a glance

What we can verify about Lambert Heating & Renewables Ltd

1 check

Each card sums up one thing we can check from public sources. Open it for the full detail and the named source. This is evidence context, not a guarantee.

See the full verification checklist for Lambert Heating & Renewables Ltd
Reviews · public evidence

What customers say

These reviews are published independently on the named public source below, not testimonials this business chose to show. We bring them together and link each one back to where it appeared, so you can open the source and read it yourself.

4.9out of 5
90 reviews in public evidenceReviewed on public review sources since 2020Most recent review
Customers often mention
  • ProfessionalMentioned in 44% of reviews we've read
  • Friendly & politeMentioned in 32% of reviews we've read
Where these reviews are published
  • Which? Trusted Traders90 reviews · 4.9 avg

Highlights

Terry revamped and installed a completely new central heating system at my 4 bedroom house in Purley. He designed, project managed, and installed a new heat pump, wet central heating system, including underfloor heating and radiators. Terry did an absolutely brilliant job across the 2 month project. His communication was great and he was very considerate of the fact that we were still living in the house at the time of the works. It’s been a full year since the install and the system is operating very well. The house is warm and the hot water hot! Terry also came round recently to do the annual service on the heat pump so that we’re ready for the coming winter. I really couldn’t recommend Terry more highly - he’s brilliant.

Customer in Greater LondonWhich? Trusted Traders5.0 rating

I was introduced to Terry via HeatGeek for an ASHP install. It quickly became apparent, Terry was very knowledgeable. The heat loss survey and initial consultation took the best part of a morning compared to just over an hour from a national company. His attention to detail gave me lots of assurance, especially as I had micro bore pipework, which adds some complexity to the calculations. From the outset, he was clear, the 'quality of the job always came first'. When it came to the install, there were a number of upgrades he insisted on, which he explained, avoids foreseeable problems later on (for example a large upgraded valve to improve flow that has an integrated magnetic filter, in addition to the recommended magnetic filter) and all have proven their worth. I also insisted on some upgrades over and above what was required for the system to work (I swapped all the radiators in the house so they would match, instead of the 6 which were recommended). Through out, he was always on time, neat, tidy, a true professional, whose wealth of knowledge and expertise shone through and as a result, I could not be happier and the system works a treat. I would happily recommend Terry to you.

Customer in SurreyWhich? Trusted Traders5.0 rating

We engaged Terry to replace our 35 year old boiler with a new combi boiler. After surveying the existing system he made recommendations as to how he would install a boiler in way that would minimise stress on our old radiator circuit and lower the risk of problems developing. This set him apart from other companies that quoted for a standard installation. His quotation was competitive and reasonable considering what was involved. The work involved disconnecting and removing the cold water tank and hot water cylinder, pressure flushing the radiator system and fitting new thermostatic valves, and installing the new boiler with the necessary adjustments of the plumbing. He worked quickly and efficiently, clearly knowing exactly what he was doing and making a very neat job of all the new pipework. He took the trouble to explain everything he was doing and why. Friendly and unassuming, he was a pleasure to have pulling your house apart.

Customer in Greater LondonWhich? Trusted Traders5.0 rating

Detailed reviews

These are the individual reviews we hold for Lambert Heating & Renewables Ltd, including the highlights above. The 90 headline total is the review volume reported across public review sources.

Customer in Greater London5.0 / 5 ·

Central Heating Install and Service

Terry revamped and installed a completely new central heating system at my 4 bedroom house in Purley. He designed, project managed, and installed a new heat pump, wet central heating system, including underfloor heating and radiators. Terry did an absolutely brilliant job across the 2 month project. His communication was great and he was very considerate of the fact that we were still living in the house at the time of the works. It’s been a full year since the install and the system is operating very well. The house is warm and the hot water hot! Terry also came round recently to do the annual service on the heat pump so that we’re ready for the coming winter. I really couldn’t recommend Terry more highly - he’s brilliant.

Which? Trusted Traders
Customer in Surrey5.0 / 5 ·

The job always comes first

I was introduced to Terry via HeatGeek for an ASHP install. It quickly became apparent, Terry was very knowledgeable. The heat loss survey and initial consultation took the best part of a morning compared to just over an hour from a national company. His attention to detail gave me lots of assurance, especially as I had micro bore pipework, which adds some complexity to the calculations. From the outset, he was clear, the 'quality of the job always came first'. When it came to the install, there were a number of upgrades he insisted on, which he explained, avoids foreseeable problems later on (for example a large upgraded valve to improve flow that has an integrated magnetic filter, in addition to the recommended magnetic filter) and all have proven their worth. I also insisted on some upgrades over and above what was required for the system to work (I swapped all the radiators in the house so they would match, instead of the 6 which were recommended). Through out, he was always on time, neat, tidy, a true professional, whose wealth of knowledge and expertise shone through and as a result, I could not be happier and the system works a treat. I would happily recommend Terry to you.

Which? Trusted Traders
Customer in Greater London5.0 / 5 ·

A great job well executed

We engaged Terry to replace our 35 year old boiler with a new combi boiler. After surveying the existing system he made recommendations as to how he would install a boiler in way that would minimise stress on our old radiator circuit and lower the risk of problems developing. This set him apart from other companies that quoted for a standard installation. His quotation was competitive and reasonable considering what was involved. The work involved disconnecting and removing the cold water tank and hot water cylinder, pressure flushing the radiator system and fitting new thermostatic valves, and installing the new boiler with the necessary adjustments of the plumbing. He worked quickly and efficiently, clearly knowing exactly what he was doing and making a very neat job of all the new pipework. He took the trouble to explain everything he was doing and why. Friendly and unassuming, he was a pleasure to have pulling your house apart.

Which? Trusted Traders
Customer in Greater London5.0 / 5 ·

Professional & Reliable

Terry responded quickly when I called for assistance with a leak on the Megaflow pipe work. He ordered the part and arrived the next day to fix it, working in tight conditions without complaint. I really appreciate the quick turnaround and will definitely call Terry again if needed.

Which? Trusted Traders
Customer in Greater London5.0 / 5 ·

Painstaking, and thoroughly professional

Terry recently did a very complicated installation of new boiler and hot tank for us. It was done to budget, and is simply immaculate: he sets himself highest standards of workmanship and only allows shortcuts if they make for a better installation. The work overran a bit but Terry stuck by his estimate, so no extra charges. The quality of the installation is absolutely superb: you could exhibit Terry’s pipework in Tate Modern. He arrived every day when he said he was going to, and was careful to explain what he was doing as the process unfolded. You might find cheaper out there, but you won’t find better.

Which? Trusted Traders
Read the other 15 detailed reviews on this page
Customer in Wiltshire5.0 / 5 ·

Boiler replacement

We have a boiler in a flat we lease British gas had left inoperable. As the boiler was getting on we decided to replace. Terry did this for us economically and managed to schedule and complete the job 48 hours after his first visit. We were really impressed by his helpful attitude, speed of completion, communication, professionalism and price. We will be terminating our British Gas Contract and using Terry from now on, despite living away form London. Highly recommended.

Which? Trusted Traders
Customer in Greater London5.0 / 5 ·

Excellent Work , Very professional

Fantastic job, Terry is very friendly and helpful. Thorough and tidy. Would highly recommend him to anyone. Thanks for the great job !

Which? Trusted Traders
Gavin in Greater London5.0 / 5 ·

Reliable

I have been using Terry for the last ten years. Very knowledgeable, very reliable, and very trustworthy. I have no hesitation in recommending him and his work.

Which? Trusted Traders
Customer in Greater London5.0 / 5 ·

Boiler Installation

Overall a satisfactory outcome because: When he arrived, on time. He showed great knowledge of our problem and was able to solve the problem, but suggested a new boiler be installed. We discussed it and decided to go with his suggestion. He ordered a new boiler and installed it after delivery. He worked slowly and carefully, when the work. was finished he explained the boiler instructions and details of the guarantee. He tidied up after completing the work and ensured the boiler was working correctly. He was smartly dressed, answered all the questions we asked and was polite throughout. He has contacted us twice to check all is performing well

Which? Trusted Traders
Customer in Greater London5.0 / 5 ·

No quote to date

Contacted Terry on 29 August. He arranged to survey a Vaillant Boiler and Megaflo installation which needed to be relocated 4 m away. Terry attended my property on 9 September. Terry said he didn’t like working on Megaflo’s and suggested a different manufacturer for the 2019 cylinder which has been hardly used. I refused. Chased Terry for the promised quote on 5 October, giving him the opportunity to say he was not interested in the work. He said he would look into it. No response since. Sharing this review to balance the glowing recommendations. Just as potential customers can be time wasters, tradesmen can definitely be just as discourteous.

Which? Trusted Traders
Customer in Greater London

Very helpful, well prepared and quick

When I first contacted Terry he was apologetic that he couldn’t come for a week but suggested another larger company who, unfortunately, had an even longer queue. When I went back to Terry he asked for photos of the problem (leaking flow rate valve for under floor heating system) which meant when he came he had the correct part to replace the leaking flow valve. As a result, when he came it was sorted out very quickly. There was also another fault on the boiler which stopped a final test of the system but Terry had a look at the boiler to see if it was a simple fault to fix which unfortunately it wasn’t and so had to wait for a technician to come under my service contract, but Terry left instructions on checking the valve was working properly. Overall Terry was very knowledgeable and very helpful and I shall be looking to using Terry for all my central heating service and maintenance in future, particularly as he readily deals with under floor heating unlike most service plans.

Which? Trusted Traders
Kevin in Greater London5.0 / 5 ·

Excellent Service

We have used this company for a number of years now to perform our heating and plumbing needs. Terry arrived recently to do our annual boiler service, and as usual he showed what a true professional he is, he always explains things with recommendations going forward, he is a very friendly and courteous gentleman and it is a pleasure to have him working in our property. This company is highly recommended!

Which? Trusted Traders
June in Surrey5.0 / 5 ·

Excellent

Our first time using Terry, but he will be our go-to from now on. He was polite, efficient, and took the time to explain our problem, what he would do to fix it, and why. Very happy.

Which? Trusted Traders
Customer in Greater London5.0 / 5 ·

Excellent and courteous service

Very professional and polite service and excellent communication from the time the appointment was booked to the actual servicing of our boiler. As first time buyers, there were a few things we didn’t realise had to be checked - Terry took the time to explain everything to us, as well us explain any work needed. I would have no hesitation in recommending Lambert Plumbing & Heating - we will be using the service again.

Which? Trusted Traders
Customer in Greater London5.0 / 5 ·

Excellent Service

I had not used Terry previously but when my heating failed a call to him resulted in some immediate advice for a temporary solution and a date for the work to be undertaken. The work was completed quickly and the charges more than reasonable. Would use these company again without hesitation.

Which? Trusted Traders
Customer in Greater London5.0 / 5 ·

Highly recommend without reservation

Terry promptly attended my request within an hour as soon as I mentioned my boiler leakage. I am very satisfied with the work he carried out and his professional services. He takes an obvious pride in his work. He is courteous, with great attentions to details and good at explaining the nature of the problem and what would be required to resolve it. I will be very glad to have him to carry out any further work in the future. I would highly recommend him without reservation.

Which? Trusted Traders
Customer in East Sussex5.0 / 5 ·

Expert professional

I have used Lambert Plumbing and Trading to install a Viessmann boiler 3/4 years ago. They came very highly recommended. They talked through my needs and requirements and installed a boiler with beautiful pipe work! They returned to service it last year and today came to fix a malfunction. Great communication, product knowledge and a genuine love for engineering and heating systems. I am out of town, they had to travel and stayed tirelessly to fix the problem. I am so happy to have a warm house and hot water again. Thank you for your care and expert service.

Which? Trusted Traders
Customer in Surrey5.0 / 5 ·

Terry Lambert

Terry Lambert, Plumbing and Heating Engineer is the most trustworthy, kind and diligent heating expert. Most gas engineers I had called out in the past said that the boiler was unfit for use and the 8 metre flue run an impossible job. Terry came round and went through all the options. He also fitted in the work between other jobs at the weekend. Now I have hot water and radiators that work. Terry Lambert is kind, quiet, hard working and the most dedicated workman I have come across. Book him and you will not regret it.

Which? Trusted Traders
Customer in Surrey5.0 / 5 ·

Tricky job done at short notice

My mother's old boiler finally packed up - she had no heating and no hot water. I found Lambert Plumbing and Heating through Trusted Traders. Despite the busy time of year, Terry gave up his weekend to do a major installation at short notice and dealt capably with numerous challenges. (The old boiler was situated in a hugely inconvenient location, near the centre of a small block of flats with an 8m run to the outside wall and no flue inspection hatches). She now has a lovely new Worcester Bosch compact combination boiler installed in a different location. I'm very pleased with the service he provided and will not hesitate to recommend Terry to my friends and colleagues. Terry, thank you for looking after my mum so well.

Which? Trusted Traders
Monica in Surrey5.0 / 5 ·

greatly recommended

i have had my boiler installed 10 years ago by Terry .It has been a difficult job with changing all the pipes from one side of the flat to the other and several other obstacles which made other teams to reject the job as too complicated. Terry not only didn't fear to take the job but he had finished it in 2 days . He is very knowledgeable, efficient, focused, and he works very tidy. I was so pleased with the way he works that i have never used anybody else to to look after my boiler since. He is very prompt with emergency situations and sometimes even gave me guidance over the phone for minor problems which he didn't need to attend. Highly recommended.

Which? Trusted Traders
Local context

Rated 4.9, in line with the local average for plumbers in Carshalton

Across 23 plumbers in Carshalton, the typical rating is 4.9 out of 5. We compare against the same businesses a homeowner would find searching for this trade locally.

From customer reviews

What customers consistently say

Recurring themes from 25 customer reviews on Which? Trusted Traders.

Respectful and tidy in your home: He tidied up after completing the work · Which? Trusted Traders, 16 Nov 2022

Clear communicationQuoted from 2 reviews

His communication was great · Which? Trusted Traders, 27 Sept 2025

excellent communication · Which? Trusted Traders, 3 Sept 2021

Credentials and associations

Credentials and memberships

1

These credentials and memberships are attributed to named public sources. Check the source before relying on them.

Source-listed gallery

Photos listed on Which? Trusted Traders

21 photos

These sources do not label every image as completed work. The gallery may include projects, people, logos or certificates, so it does not count as completed-work evidence.

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From Which? Trusted Traders

Opening hours

Open 7 days a week

The hours this business publishes online, handy for knowing when to call. Confirm before you set off.

Monday–Sunday
8am–10pm
Sources

Where this information comes from

1 named public source

Everything on this page is drawn from named public sources. Where a source provides a public link, you can open the original and dig deeper.

Public evidence last checked June 2026

About

Welcome to Lambert Heating & Renewables Ltd—a small, family-run business rooted in Carshalton and proudly serving Wallington, Sutton, Cheam, Banstead, Epsom, and wider Surrey.With over 25 years’ experience—including work for British Gas—we specialise in boiler installation, servicing, and repair, plus full central heating upgrades. We offer extended warranties on leading brands, and all work meets or exceeds manufacturer requirements.We’re HeatGeek Elite trained—certified in advanced heating design and audited for quality and compliance. Every job is carried out with care, clarity, and full insurance cover.Thank you for considering us.

Services they list

Boiler installationBoiler repairBoiler servicingGas safety testing and inspectionUnderfloor heatingCentral heating systems (installation and servicing)Unvented cylinder installation and maintenanceWater softener installation and maintenancepower flushinggas cooker installation

Listed on public sources or the business's own website; check directly that they cover your job before you book.

What this business says about itself
From their own website

What this business says about itself

  • Areas served: South London, Surrey

These are statements the business makes on its own website, worth confirming in writing (and on the official registers) before you hire, not independently verified by us.

Your own checks

What to check before you hire

Worth checking yourself
Their public evidence comes from a single source. Look them up on another site before deciding.
Verify at the sourceCheck them yourself

Approved plumbers on the free WaterSafe register are vetted, qualified to the water regulations and insured. Check they're listed, or find a WaterSafe-approved plumber near you.

Check the WaterSafe register
Agree the call-out fee, the hourly or fixed rate, and whether parts are charged on top, in writing, before an emergency plumber starts. Out-of-hours overcharging and 'while I'm here' add-ons are common complaints.
Be wary of a plumber who, on a first visit, says your whole system or boiler must be replaced. Get a second opinion and an itemised quote (parts and labour separately) before agreeing to major work.
Gas and boiler work is a separate, regulated trade, not general plumbing. Make sure anyone working on a gas appliance is specifically registered to do gas work, and ask to see that registration before they start.

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Good to know

Common questions about Lambert Heating & Renewables Ltd

Is Lambert Heating & Renewables Ltd a legitimate business?

Lambert Heating & Renewables Ltd has 90 independent public reviews, rated 4.9 out of 5. This is independent public evidence gathered from named public sources (no ads, no paid placement), not a guarantee of workmanship. If anything here is out of date, the business can request a correction.

What do customers say about Lambert Heating & Renewables Ltd?

Lambert Heating & Renewables Ltd has 90 public reviews, averaging 4.9 out of 5. You can read the individual reviews and where each came from in the reviews section above.

How do I know Lambert Heating & Renewables Ltd's reviews are genuine?

Lambert Heating & Renewables Ltd's 90 public reviews come from a named public review source, and MyTrustedTraders links every one back to where it was published, so you can open the source and read them yourself rather than trusting a single curated page. MyTrustedTraders brings this public evidence together with no ads and no paid placement: we show where every review came from rather than selling rankings, so you can weigh the evidence for yourself.

Is Lambert Heating & Renewables Ltd qualified and accredited?

We hold 1 independently sourced credential for Lambert Heating & Renewables Ltd, including Which? Trusted Trader. Each is attributed to the body that issued it in the credentials section. For example, Which? Trusted Trader is Which? Trusted Trader: an endorsement from the consumer champion Which?, given to traders who pass its assessment process.

What does Lambert Heating & Renewables Ltd specialise in?

Lambert Heating & Renewables Ltd lists specialist services including Boiler installation, Boiler repair, Boiler servicing, Gas safety testing and inspection, Underfloor heating, Central heating systems (installation and servicing). If your job is one of these, look for it in their listed services or ask them to confirm for your project.

What areas does Lambert Heating & Renewables Ltd cover?

They state on their own website that they cover South London, Surrey. This is the business's own statement on their website, not something we have independently checked. Confirm they cover your postcode before booking.

How long has Lambert Heating & Renewables Ltd been trading?

Lambert Heating & Renewables Ltd has been reviewed on public sources since 2020.