Public evidence profile

Baseline Build and Renovate Ltd

BuilderLondon4.9219 reviews · 3 independent public sources
Review quality
Caution noted
Credentials & registries
Which? Trusted Trader
Companies House
Active incorporated business

Review caution: one or more review signals need a closer check.

No Trust Score yet

  • Rated 4.9 from 219 reviews across 2 review sources
  • 1 credential shown

Worth checking: TrustMark

Based on rating, review volume, independent sources and credential evidence. Evidence context, not a guarantee of workmanship.

Trust at a glance

What we can verify about Baseline Build and Renovate Ltd

3 checks

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 Baseline Build and Renovate Ltd
Credentials and associations

Credentials and memberships

1

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

Companies House registration

Active incorporated business

Active

Baseline Build and Renovate Ltd is linked to a Companies House entry. This shows the business registration, not evidence of workmanship or service quality.

Legal nameBaseline Build and Renovate Ltd
Company number11470688
Incorporated
Registered activityHome building & construction
Run by2 directors (longest-serving director appointed in 2018)
Official checkOn the public register

Why this helps you judge trust: this trader is linked to a registered company with named people who are legally accountable for it, on an official register anyone can check, a layer of accountability an unregistered trader doesn't offer. Around 8 years on the register also points to an established business rather than a brand-new one.

Review quality check

One or more review signals need a manual check

Review caution

Some review signals are flagged for a closer manual check. That doesn't prove fake reviews or any wrongdoing.

Assessed 29 Jul 2026
Repeated review text

1 exact and 2 similar review-text patterns found across sources

Review text appears to be reused across more than one source. This is a bounded caution for manual review, not proof of wrongdoing.
From customer reviews

What customers consistently say

Recurring themes from 150 customer reviews on Checkatrade.

Clear communicationQuoted from 2 reviews

Calum made sure we were kept informed at every stage · Checkatrade, 26 Mar 2026

Excellent communications · Checkatrade, 18 Mar 2025

Reliable and punctualQuoted from 2 reviews

The team were reliable · Checkatrade, 18 Mar 2025

The team were reliable, prompt · Checkatrade, 6 Jun 2024

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.

Dulwich bathroom install, SE21 house extension

SE26 Lower sydenham bedroom refurb, house renovation

BR3 Beckenham House renovation

Bromley loft conversion, BR3 Beckenham House renovation

SE23 Kithchen renovation, Forest hill

SE23 House extension, Forest hill

Dulwich loft conversion, SE21 house renovation

From Which? Trusted Traders

Opening hours

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

Monday–Thursday
9am–5pm
Reviews · public evidence

What customers say

These reviews are published independently on the named public sources 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
219 reviews in public evidence3 reviews in the last 12 monthsReviewed on public review sources since 2013Most recent review Cross-checked across 2 review sources
Customers often mention
  • Friendly & politeMentioned in 29% of reviews we've read
  • PunctualMentioned in 26% of reviews we've read
Where these reviews are published
  • Checkatrade191 reviews · 4.9 avg
  • Which? Trusted Traders28 reviews · 4.9 avg

Highlights

Baseline did a full renovation of my house, including a rear single storey extension. Calum and his team were fantastic throughout the project. Work was carried out to a high standard and everyone at Baseline clearly has pride in their work. Calum made sure we were kept informed at every stage, making suggestions to improve the project/save money and sent photos whenever we were unable to be there. Options were explained clearly and Calum listened to what we wanted and was able to make it happen. Baseline made the project as stress-free as possible and we would definitely use them again.

CustomerCheckatrade5.0 rating

I would happily recommend Baseline. Calum and the team carried out a full bathroom replacement to a high standard. From the outset, Calum was great to work with and understood our needs, and the work was completed successfully. Thanks!

AnonymousCheckatrade5.0 rating

Baseline renovated our Victorian terrace kitchen with speed and precision. They predicted our needs, kept us informed and provided a high quality service. They kept to time and budget. Our new kitchen is everything we hoped for. We will reach out to Baseline again for any future projects.

CustomerCheckatrade5.0 rating

Detailed reviews

These are the individual reviews we hold for Baseline Build and Renovate Ltd, including the highlights above. The 219 headline total is the review volume reported across public review sources.

Customer4.3 / 5 ·

"Contacted Baseline in October 2025 arranged site visit, Callum identified crumbling wall as damp between kitchen /shower room. Also large crack which appeared in kitchen wall. Estimate received but in meantime noticed crack appearing between extension and main house Callum visited and we agreed on helix rods, filling in of surface cracks, a few new slates on roof, repaint of extension. Accepted both estimates work to commence in January. The 2 workers were courteous, friendly, hard workers who ensured our kitchen and bathroom floors were well protected . Estimates itemised, reasonable cost

Checkatrade
Customer4.9 / 5 ·

Could not be more pleased with the professionalism of the team. Genti and Calum were always available for consultation & kept informed as the work proceeded. Despite encountering a few unexpected difficulties, and carrying out major structural works involving open plan kitchen diner and converting an old bathroom to a wetroom, their team remained focused and amiable. For us, most importantly the work has been completed on time and to the highest standard throughout.

Checkatrade
Customer5.0 / 5 ·
Verified by Checkatrade

I've used Baseline a few times and would recommend them. Callum and his team are great to work with. They listened to us and guided us throughout the building process. They had great ideas; suggested suppliers and encouraged collaboration. Communication and aftercare was good and since they operate mainly within the SE of London, they were often working nearby. I have learnt so much from working with Baseline and would definitely do so again.

Checkatrade
Customer5.0 / 5 ·
Verified by Checkatrade

After using with Calum and the Baseline team in the past, we engaged with them to complete our ground floor extension. We're very pleased with the outcome - it was completed earlier than planned and on budget. The team worked hard throughout and we will be asking them to do any future works.

Checkatrade
Customer4.6 / 5 ·

Calum and his experienced team undertook a large kitchen renovation and extension, providing from start to finish professional service. The project was completed on time, on budget and to a high standard. The team were reliable, prompt and conscientious. We are incredibly happy with the outcome.

Checkatrade
Read the other 8 detailed reviews on this page
Customer5.0 / 5 ·
Verified by Checkatrade

Refurbishment of an en suite shower and toilet with complex external plumbing, together with internal decorating throughout to the upstairs floor. Work carried out to the agreed schedule and budget. Throughout the project, there was continuing communication and excellent up front advice to find a solution to existing plumbing problems.

Checkatrade
Customer4.9 / 5 ·
Verified by CheckatradeUpper extension and loft conversion

I would wholeheartedly recommend the Baseline team for any project. They took us through our whole house renovation. The work included building another upper storey and loft conversion as well as roof, downstairs, electrics, heating and refurb on every floor. The guys were polite, clean and respectful of neighbors. Costings were clear and we received good communication. They stayed within budget and timelines whic was a big concern. I couldn’t be more pleased with the results.

Checkatrade
Customer5.0 / 5 ·
Verified by CheckatradeBathroom and bedroom renovation

Calum and his team did a fantastic job renovating our bedroom and bathroom to a very high standard. I particularly appreciated quick replies from Lauren in the office, Calum’s guidance to make sure the suite, radiators etc we picked were appropriate, and the care the team took of details. They also took brilliant care of our home, covering carpets thoroughly and trying really hard to minimise dust. Simply, Baseline were a joy to work with and when we need more work doing I won’t hesitate to call Calum. It’s great to know we now have a local builder we can trust.

Checkatrade
Customer5.0 / 5 ·
Verified by Checkatrade

We spoke to at least 10 builders in the SE8 area before choosing Baseline. Calum immediately impressed us on initial visit with his professionalism, ideas and knowledge. Even the quotes were by far the clearest and most thorough of the lot; it was obvious the team considered the project in detail from the start. It gave us a lot of confidence. The work itself was conducted quickly and neatly, dust was kept localised and they made it easy for us to continue to use the house at the end of each working day. Throughout the communication was clear, friendly and helpful. Highly recommended.

Checkatrade
Customer1.5 / 5 ·
Verified by Checkatrade

We've asked Baseline for an estimate, someone turned up and then nothing. They have no availability, they can't do a quote, their staff is on long term sick...! Very strange, do they only have one person?

Checkatrade
Customer5.0 / 5 ·
Verified by CheckatradeRepair of study after disastrous water leak

Having used Calum and his team before, I called them in after a water leak caused terrible damage in my study. As always, they came in, worked to time and budget and did an impeccable job. Team are courteous, efficient and hard working and clean up superbly at the end. Thoroughly recommend.

Checkatrade
Customer4.9 / 5 ·
Verified by Checkatrade

A brilliant company to deal with throughout. Communicative and end product was exactly what we hoped for. Would highly recommend.

Checkatrade
Customer4.8 / 5 ·
Verified by Checkatrade5 bed extension, loft and renovation

Baseline renovated, extended and reconfigured our 5 bedroom house to an exceptional standard. The extensive project took less than 6 months from beginning to end including plans, permission, landscaping of the front and rear, extension, loft conversion, changing the internal layout, moving the stairs, security system, new heating and refurbishment throughout. Calum and his team are professional, knowledgeable, and courteous. They worked very efficiently throughout the obstacles of lockdowns and national shortages. The team have excellent attention to detail.

Checkatrade
Local context

Rated 4.9, in line with the local average for builders in London

Across 2856 builders in London, the typical rating is 4.9 out of 5. We compare against the same businesses a homeowner would find searching for this trade locally.

Sources

Where this information comes from

3 named public sources

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.

Check dates vary by source. Where we hold a date, the check shows it.

About

Bathrooms in London.

Services they list

Accessible KitchensBasement / Cellar ConversionsBathroom DesignerBathroom FitterBathroom ShowroomBathroom Supply & FitBrick / Concrete Structural RepairsCar PortsCladdingConcrete GaragesDemolitionDisabled Bathrooms / Showers

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

Areas served

London

The areas they list covering on a public directory; confirm they cover your address before you book.

What this business says about itself
From their own website

What this business says about itself

See their work: Photo gallery (opens in new tab) · Houzz (opens in new tab) · Instagram (opens in new tab) · Facebook (opens in new tab)

Accreditations it displays. Confirm each is current on the official register before you hire:

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.

Independent checks

About this business

How long they've really been tradingIndependent sources agree they've been operating since at least 2013. That's 13 years, confirmed across 2 separate sources.
First public review2013Company registered2018
A real, registered businessWe cross-checked Companies House: this business is officially registered for work that matches the builder services it advertises - independent confirmation it's a genuine business set up to do this kind of work, not just a directory entry.
Recently reviewed3 reviews in the last 12 months.
Your own checks

What to check before you hire

Worth checking yourself
Always confirm credentials and quotes with the business directly before hiring.
Verify at the sourceCheck them yourself

This trade isn't licensed in the UK, so anyone can set up. TrustMark is the only Government-endorsed quality scheme for work in and around the home - check whether they're registered, or find a TrustMark-registered business.

Check the TrustMark register
Never pay a large deposit up front. Agree a staged payment schedule tied to completed milestones, and hold a small retention until snagging is done.
Get it in writing: an itemised quote with scope, materials, start and finish dates, and how any changes (variations) will be priced.
Be wary of a cash-only price or pressure to start tomorrow. Both are red flags for an unaccountable job.

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Good to know

Common questions about Baseline Build and Renovate Ltd

Is Baseline Build and Renovate Ltd a legitimate business?

As of 29 Jul 2026, we hold 219 independent reviews across Checkatrade and Which? Trusted Traders for this business, and Companies House lists (no. 11470688) as active, checked 20 Jul 2026. This is independent public evidence, not a guarantee of workmanship. If anything here is out of date, the business can request a correction.

What do customers say about Baseline Build and Renovate Ltd?

Baseline Build and Renovate Ltd has 219 public reviews, averaging 4.9 out of 5, gathered across 2 review sources. You can read the individual reviews and where each came from in the reviews section above.

How do I know Baseline Build and Renovate Ltd's reviews are genuine?

Baseline Build and Renovate Ltd's 219 public reviews are gathered and cross-checked across 2 review sources. Reviews spread across several review sources are harder to fake than a single polished 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.

Has Baseline Build and Renovate Ltd had recent public reviews?

Baseline Build and Renovate Ltd has 3 public reviews dated within the last 12 months. That shows their review history includes recent feedback; it does not prove current availability, so confirm capacity before hiring.

Is Baseline Build and Renovate Ltd qualified and accredited?

We hold 1 independently sourced credential for Baseline Build and Renovate 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.

Is Baseline Build and Renovate Ltd a registered business?

Baseline Build and Renovate Ltd is a registered business on Companies House (company number 11470688), incorporated 18 Jul 2018, listed as active. This confirms the legal registration of the business, not evidence of workmanship or service quality.

What does Baseline Build and Renovate Ltd specialise in?

Baseline Build and Renovate Ltd lists specialist services including Accessible Kitchens, Basement / Cellar Conversions, Bathroom Designer, Bathroom Fitter, Bathroom Showroom, Bathroom Supply & Fit. If your job is one of these, look for it in their listed services or ask them to confirm for your project.

How long has Baseline Build and Renovate Ltd been trading?

Baseline Build and Renovate Ltd has been reviewed on public sources since 2013.