Affordable Builders in London you can trust for quality construction, renovation and maintenance
Soraiz Builders completes extensions, loft conversions, kitchen renovations, bathroom refits, and full house renovations across all 32 London boroughs. Every project runs from a single point of contact — one team, one quote, one deadline. We respond to every enquiry within 2 hours.
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What London Homeowners Say About Us
"They were very professional. Came on time, did exactly as they said, and did an excellent job. I had the halls, two bedrooms and lounge painted — very tricky doors but they did an excellent job. Highly recommended."
"There is an old saying: empty vessels make the loudest noise. Soraiz Builders' work does the talking and it is quality. I have used a lot of contractors over the years and Hussain is by far one of the very best."
"Soraiz Builders were a pleasure to deal with. Responsive to my messages, reasonable pricing, timely for appointments, and completed the work to a good standard. I have referred them to other property owners."
Complete Building and Renovation Services Across London
From a single-room refit to a full house renovation — one team, one contract, one deadline.
Renovation & Refurbishment
Full-scope residential and commercial renovation across London.
View service →House Renovation
Whole-house transformations from groundwork to final finishes.
View service →Kitchen Renovation
Fitted units, worktops, tiling, plumbing and electrics — full fit.
View service →Flat & Apartment Refurbishment
End-to-end flat refurbishments — HMOs, single-let, and owner-occupied.
View service →Bathroom Fitting
Full bathroom fits — suites, tiling, waterproofing, underfloor heating.
Coming soonLoft Conversion
Dormer, hip-to-gable, Velux — full planning and build.
Coming soonExtensions
Rear, side-return, and double-storey extensions across London.
Coming soonMore Services
Painting, plastering, plumbing, electrics, flooring, roofing and more.
Get a quote →London Builders With 7 Years of Proven Results
"Every project we take on gets the same attention — whether it's a single bathroom or a full house renovation. One team, one standard, one deadline."
Building Regulations — handled from day one
Every extension, loft, and structural project is managed with full Building Control compliance built in. No surprises at sign-off.
One team — no subcontractors who disappear
Bricklayers, carpenters, plumbers, and electricians all employed directly. The team you meet on day one is the team that finishes the job.
Itemised quotes — no hidden charges
Materials, labour, and ancillary costs all listed separately. Any variation is documented and approved before work proceeds.
Party Wall Act and planning — managed professionally
We handle Party Wall notices, liaise with neighbouring properties, and prepare accurate planning applications. Conservation area projects get full Heritage England attention.
Fully insured — documentation available on request
Public liability, employer's liability, and contract works cover in place for every project. Insurance documents available before work begins.
From First Call to Final Handover — 4 Clear Steps
A structured approach that keeps every project on time, on budget, and fully compliant.
Free Consultation & Site Visit
We visit your property, assess the scope, and identify any structural or planning considerations. Honest timelines, realistic options — before any commitment.
Written Quote Within 2 Hours
Itemised: materials, labour, ancillary costs, Building Control fees. No vague estimates. No charges revealed at the end. Variations documented and agreed before work proceeds.
Build & Project Management
A dedicated site manager oversees daily progress. Trades work in logical sequence. Building Control inspections are booked in advance. Weekly updates throughout.
Handover & Aftercare
Final inspection. Building Control sign-off secured. All guarantees and warranties transfer to you in writing. We remain available for any adjustments during settling.
What Building Work Costs in London — 2026 Guide
Guide ranges for completed projects across Greater London. Central London boroughs typically sit at the upper end. All figures are for standard specification — bespoke and high-spec builds vary.
| Service | Typical cost range | Duration |
|---|---|---|
| Rear house extension | £40,000 – £80,000 | 10 – 14 weeks |
| Loft conversion | £35,000 – £65,000 | 8 – 12 weeks |
| Full house renovation | £30,000 – £90,000+ | 12 – 20 weeks |
| Kitchen renovation | £5,000 – £25,000 | 2 – 4 weeks |
| Bathroom fitting | £4,000 – £15,000 | 1 – 3 weeks |
| Flat refurbishment | £10,000 – £40,000 | 4 – 10 weeks |
| New build (per m²) | £1,800 – £3,500 per m² | Project-dependent |
A rear house extension in London costs £40,000 to £80,000 in 2026. A loft conversion costs £35,000 to £65,000. A kitchen renovation costs £5,000 to £25,000 depending on size and specification. All prices depend on scope, materials, and borough. Call +44 7424 518632 or request a written quote for an accurate project figure.
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Quote request received!
Thank you — a member of the Soraiz Builders team will be in touch within 2 hours with your detailed quote. Your estimate summary has been included with your request.
All estimates are indicative figures based on typical London contractor rates for 2025. Final quotes depend on site survey, specification, access, and build complexity. Soraiz Builders & Services Ltd provides free, no-obligation site surveys across Greater London.
We Work With Homeowners, Landlords, Businesses and Developers
Homeowners
Extensions, loft conversions, kitchen renovations, and full house renovations. We minimise disruption, maintain a clean site, and keep you informed at every stage. Most of our homeowner work comes through referrals.
Landlords
Fast turnarounds between tenancies without cutting corners. Competitive pricing that protects rental yields. We work across HMOs, single-let properties, and portfolio refurbishments across West and North West London.
Businesses
Office fit-outs, retail spaces, and commercial refurbishments around your operating hours. We work evenings and weekends where needed. Health and safety documentation and Building Control sign-off provided at handover.
Developers
We integrate into wider construction programmes and stick to agreed milestones. Progress reports keep all stakeholders informed. Quality control at every stage prevents costly remedial work later.
By combining residential craftsmanship with commercial expertise, Soraiz Builders ensures every project from luxury homes to commercial developments is completed on time, within budget, and to the highest standards of quality and safety.
What London homeowners say about us
Every review is from a verified MyBuilder client — real jobs, real London homes, real results.
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Call us Now +44 7424 518632
FAQ's About Our Building Services
Check for verifiable accreditations, written insurance details, and recent reviews on Google and Checkatrade. Ask for an itemised written quote and confirm Building Regulations compliance on previous projects. A builder who responds quickly, visits the site before quoting, and provides a written quote is demonstrating reliable behaviour. Soraiz Builders responds to every enquiry within 2 hours.
Labour rates in London typically fall between £150 and £300 per day depending on the trade, experience level, and project scope. Most projects are quoted as a fixed-price contract rather than a day rate, which protects you against cost overruns. Soraiz Builders provides itemised fixed-price quotes after a free site visit.
Many extensions and loft conversions fall under Permitted Development rights and do not need a planning application. Key thresholds: rear extensions up to 3 metres (terraced or semi-detached) or 4 metres (detached) in depth; loft conversions up to 40m³ (terraced) or 50m³ (detached or semi-detached) of additional volume. Properties in conservation areas, listed buildings, and some London boroughs have additional restrictions. We assess planning requirements during the free site visit.
4 typical project durations: a bathroom or kitchen fit-out takes 1 to 3 weeks; a loft conversion takes 8 to 12 weeks; a rear house extension takes 10 to 14 weeks; a whole-house renovation spans 12 to 20 weeks. Timelines depend on size, specification, regulatory approvals, and material lead times. We provide a milestone schedule with every written quote.
Yes. We hold public liability insurance, employer's liability insurance, and contract works cover. These protect your property, our team, and the work carried out throughout the project. Full insurance documentation is available on request before work begins.
We work across all 32 London boroughs and the City of London. Projects span from Enfield in the north to Croydon in the south, Havering in the east to Hillingdon in the west. Our base is in Northolt, West London (UB5), which gives us fast access to Ealing, Harrow, Wembley, Brent, and Hillingdon. Travel costs are included in all quotations.
We respond to every enquiry within 2 hours during business hours (Monday to Friday, 8am to 6pm). For emergency or urgent work, call +44 7424 518632 directly. We aim to arrange a free site visit within 48 hours of initial contact for standard projects.
We work on houses, flats, apartments, HMOs, office spaces, retail units, and rental properties across London. Project types include Victorian terraces in Clapham and Islington, modern flats near Stratford, Edwardian houses in Ealing and Chiswick, and new-build developments across Greater London.
Working with us
Our Gallery
Latest Projects & Case Studies
Real building projects delivered across London — extensions, renovations, and complex structural work. Results that speak for themselves.
Building Contractors Covering
All 32 London Boroughs
Soraiz Builders carries out extensions, loft conversions, renovations, and building work across every London borough. Our base in Northolt, West London gives us fast access across Greater London — from Ealing to Enfield, Hillingdon to Havering.
London Postcode Checker
Enter your postcode prefix (e.g. SW11, UB5, HA3) to instantly see your coverage zone and estimated travel time from our Northolt base.
Soraiz Builders handles all London council logistics including street skip permits, structural scaffolding authorisations, and Party Wall surveyor notifications across all boroughs.
Borough Logistics Directory
Get a Free Building Quote — We Respond Within 2 Hours
Serving all 32 London boroughs. One team, one quote, one deadline. Call, WhatsApp, or complete the form.
Monday – Saturday 8am – 6pm · Emergency enquiries: call directly