Polar Build is a fully certified building company creating quality extensions throughout London and Home Counties. We’re a family-run business with a reputation for high-quality work and unrivalled personal service. We always ensure that our prices are competitive, we don’t believe in hidden costs or call out charges, and we provide FREE written quotations, so you can be certain of our costs before choosing to work with us.
Our team of fully qualified builders are here to help! With over 20 years in the industry, we know what matters to you; competitive pricing, quality workmanship and a trusted team.
Ad ID: 8963970561
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Reviews (10)
Please note: any reviews provided by our partner, Bark are not managed or verified by Gumtree.
4.6out of 510 reviews
Ashwin Patel
25 May 2026
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The Polar Build team just renovated three bathrooms for me , it was a great experience, well organised since we were living at the home. Will certainly use them again and have no hesitation in recommending them
Aggy Low
25 May 2026
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We recently used Polar Build for a kitchen extension and had a positive experience from start to finish. The team were professional, approachable and kept us informed throughout the process. Communication was good, timelines were explained clearly and the workmanship was completed to a high standard. The new kitchen space has completely transformed our home and created a much more practical family area. We would happily recommend Polar Build to anyone considering a kitchen extension project.
Sonal Gupta
12 May 2026
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Polar Build Ltd presents itself as a professional, transparent, and cost-effective construction company. Based on my experience, this was not reflected in the service provided. I found comparable or better options elsewhere at significantly lower cost.
I terminated my contract following repeated issues with professionalism, communication, and quality of work. One of the most serious concerns involved contractors entering and using my personal space and belongings without consent. Despite raising this, it continued, including an incident where a refrigerator containing medication was unplugged, resulting in spoilage.
Communication and conduct from the business manager were frequently unprofessional. I experienced dismissive interactions, including being recorded during a meeting without consent and concerns about delays and accommodation not being handled constructively. After multiple attempts to resolve issues, I was forced to raise a formal complaint.
After informing the owner verbally of my intention to terminate, I received an immediate termination notice from the company, which differed from the contractual notice period expected of me. A detailed follow-up email sent on 30/11/25 requesting a formal handover and addressing outstanding issues received no response, despite assurances of a reply within 7 working days.
I was charged tens of thousands of pounds for work that was incomplete, delayed, or below acceptable standards. Much of it required correction by another contractor. Issues included defective plastering (cracking and detachment), incomplete and potentially unsafe electrical work without certification, and plumbing installations that did not match agreed specifications. A different and unsuitable boiler was installed, with no certification provided.
Heating and electrical systems were left unusable during winter, requiring alternative accommodation. Appliances supplied did not match agreed specifications, and at least one was second-hand.
A planning application I was quoted £5,000 for was never submitted, and no evidence of it was provided.
Project timelines were misrepresented. Despite assurances that the project was ahead of schedule, key milestones such as kitchen design and ordering were delayed without clear justification. I frequently had to chase for updates and received inconsistent information.
Project management was lacking. I had minimal contact with the assigned project manager and received little proactive communication. Internal operational issues within the company also impacted the project.
My property is a Grade II listed building, and I was given incorrect advice regarding planning and building consent, which could have exposed me to legal and financial risk. Additionally, original features were damaged during the works and required specialist repair at significant cost.
The bathroom specification process was repeatedly restarted, reflecting poor organisation. Deadlines were missed, leading to extended temporary accommodation, which I initially covered based on written assurances of reimbursement (over £6,000).
Company equipment also remains on my property with no meaningful effort made to remove it.
To date, I have paid approximately £80,000 of a £155,000 contract, yet only a small portion of the work was completed, and much of that required redoing. Overall, this experience resulted in significant financial loss, delays, and disruption.
Kam Danda
8 June 2026
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⭐⭐⭐⭐⭐
Polar Build delivered a high-quality renovation with excellent craftsmanship, clear communication, and professional project management. The team was reliable, attentive to detail, and completed the work to a high standard, making the entire process smooth and stress-free.
I would say that construction is expensive in the UK
TIa Gohil
26 May 2026
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The best builders I have come across after being let down by two other builders.
Simply finished off and made best of what poor workmanship previous builders left. Really cannot than them enough
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