Extensions & Loft Conversions
More house, same address.
Rear, side-return and wrap-around extensions, loft and basement conversions, built from foundations to final coat.


London builders · 15+ years
Extensions, refurbishments, driveways and gardens across all 32 London boroughs. One team from the first visit to the final sweep-up.

One team for all of it
Extensions. Lofts. Kitchens. Bathrooms. Driveways. Patios. Flooring. Repairs.
What we do
Scroll to watch it come together. Everything you see here is built by one team.
01Extensions & Lofts
More house, same address.
Rear, side-return and wrap-around extensions, loft and basement conversions, built from foundations to final coat.
Kitchens, bathrooms and whole houses.
Kitchen and bathroom fitting, full-house renovations, plastering, rewiring and decorating under one roof.
A front that does the house justice.
Block paving, resin-bound, tarmac and natural stone driveways and paths, built on a proper sub-base with proper drainage.
A garden you will actually use.
Porcelain and stone patios, decking, fencing, garden walls, turfing and garden rooms.
The surface you touch every day.
Engineered and solid wood, herringbone parquet, LVT, laminate and tile, on a subfloor that has been properly prepared.
Small jobs, done properly.
Repairs, repointing, roofing and guttering, painting, and responsive maintenance for homeowners and landlords.
Before and after
The kind of work we do every week on London homes. Pick a job, then slide.

BeforeAfter
Why Surduk
Public liability and employer’s liability cover on every job, with documents available before we start.
Itemised and in writing. The price we quote is the price you pay unless you change the job.
The people who quote are the people who build. You always know who is in your home.
15+ years of working on London houses, streets and councils, across all 32 boroughs.
How it works
Answer a few quick questions online or call us. It takes about a minute, and a real person reads every enquiry.
We come to you, measure up, look at access and talk through options. No charge, no pressure.
An itemised price and a start date, normally within 24 hours of the visit.
One point of contact, a tidy site each evening, and a walk-round with you before the final invoice.
Reviews
Most of our work comes from people we have already built for, and from their neighbours.
[Placeholder review. Replace with a real customer’s words about their extension: what was built, how the team behaved on site, and whether it finished on time.]
[Placeholder review. A short, specific quote works best: two or three sentences from a driveway or paving customer.]
[Placeholder review. Replace with a kitchen or bathroom customer’s feedback about quality, tidiness and communication.]
[Placeholder review. A landlord or repeat customer saying why they keep coming back is ideal here.]
Where we work
Tap your borough to see the work we do there and what your council expects.
Select a borough
All 32 boroughs and the City, from Barnet to Croydon and Hillingdon to Havering.
See all areasFAQ
Not answered here? Call 07595 386864 and ask us directly.
All 32 London boroughs and the City, from Barnet to Croydon and Hillingdon to Havering.
Yes. The site visit and written quote cost nothing and you are under no obligation to go ahead.
Yes. We carry public liability and employer’s liability insurance and can send the certificates with your quote.
It depends on the size of the job and the time of year. Small jobs can often start within a week or two. For extensions and full refurbishments we agree a start date when you accept the quote.
Yes. We advise on whether you need permission, work with your architect or ours, and manage building control inspections through to the completion certificate.
Larger jobs are paid in stages tied to progress, set out in the quote. We never ask for the full amount up front.


Tell us about the job in about a minute. We reply within 24 hours with a time for your free site visit.

Just a few quick steps left for your free, fixed quote. Your answers are saved either way.