Add in Sehmi Site settingsBuilt properly.Finished beautifully.
Extensions, loft conversions and full refurbishments across London, delivered by one team from first visit to handover.
- [Fully insured][Public liability cover]
- Free site surveyNo obligation
- Written quotesItemised and fixed
- [Accreditation][e.g. TrustMark member]
Add in Sehmi Site settingsAdd in Sehmi Site settings
London homes, built with care
We’re a London building company run by people who still work on the tools. We price honestly, keep you updated and finish every job as if it were our own home.
Skilled trades
Our own trusted team on every job.
On schedule
A clear timeline, agreed up front.
Honest pricing
Itemised quotes you can hold us to.
Peace of mind
[Insured work with a written guarantee.]
Our services
Whether you’re adding space or transforming what you have, we manage the whole job: trades, materials and schedule.
Add in Sehmi Site settingsHouse extensions
Rear, side-return and wrap-around extensions that bring in light and space.
Explore house extensionsAdd in Sehmi Site settingsLoft conversions
Dormer, hip-to-gable and mansard lofts, from structure to final finish.
Explore loft conversionsAdd in Sehmi Site settingsFull refurbishments
Whole-house renovations: rewiring, replastering, heating and new layouts.
Explore full refurbishmentsAdd in Sehmi Site settingsKitchens
Kitchen fitting and open-plan knock-throughs, steel beams included.
Explore kitchensAdd in Sehmi Site settingsBathrooms
Bathrooms, en-suites and wet rooms, fully tiled and finished.
Explore bathroomsAdd in Sehmi Site settingsNew builds
New homes and outbuildings, managed from groundwork to handover.
Explore new buildsSwipe to see all services
The Sehmi Standard
Ten commitments we make on every project, whatever the size. Hold us to them.
- 01
Free survey, written quote
Every job starts with a site visit and an itemised quote in writing.
- 02
One named project lead
The same person runs your job from start to finish, and answers your calls.
- 03
Timeline agreed up front
Start date and key stages set out before any work begins.
- 04
Your home protected
Floors, stairs and furniture covered before we lift a tool.
- 05
Cleared every day
Rubbish removed and the site left safe and tidy each evening.
- 06
Weekly photo updates
Progress photos and a quick summary, so you’re never guessing.
- 07
Neighbours kept informed
We let them know before noisy or disruptive work.
- 08
No surprise extras
Any change is priced and agreed with you before we do it.
- 09
Snagging walk-round
We check every detail together before we call the job done.
- 10
[X]-year guarantee
[Your workmanship guarantee, in one line.]
Four simple steps
- 1
Free site survey
We visit, measure up and listen to what you want from the space.
- 2
Design & quote
Drawings, approvals help and an itemised written quote.
- 3
The build
One project lead, a tidy site and regular progress updates.
- 4
Handover
A final walk-round together, sign-off and aftercare.
Add in Sehmi Site settingsAdd in Sehmi Site settingsRear kitchen extension, [Borough]
[Two sentences on the transformation: what the space was like before and how the family uses it now.]
- Build time
- [X] weeks
- Added space
- [X] m²
- Project type
- Extensions
- Location
- [Borough]
Approvals, handled
London projects often need permissions before work starts. We’ll explain what you need and help you get it sorted.
Planning permission
Help with drawings and applications to your local council.
Building regulations
Inspections and sign-off so your work is certified.
Party wall agreements
Guidance on notices when you share a wall with neighbours.
Structural calculations
Engineer’s calcs for steel beams and structural changes.
Trusted by London homeowners
[Paste a real review from a client here. Reviews from Google, Checkatrade or Houzz work best.]
[Paste a real review from a client here. Reviews from Google, Checkatrade or Houzz work best.]
[Paste a real review from a client here. Reviews from Google, Checkatrade or Houzz work best.]
[Paste a real review from a client here. Reviews from Google, Checkatrade or Houzz work best.]
[Paste a real review from a client here. Reviews from Google, Checkatrade or Houzz work best.]
Working across London
We’re based in [AREA] and work across these boroughs. Not on the list? Get in touch, we may still be able to help.
Check your area- [Borough]
- [Borough]
- [Borough]
- [Borough]
- [Borough]
- [Borough]
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- [Borough]
Questions, answered
Can’t see your question? Give us a call and we’ll talk it through.
Ask us a questionAre your site surveys and quotes free?
Yes. We visit, measure up and send an itemised written quote, all free and with no obligation.
Which areas of London do you cover?
[List your boroughs or areas, e.g. West and North-West London and nearby Home Counties.]
Can you help with planning permission and building regs?
[Say whether you arrange drawings, planning applications and building control, or work alongside an architect.]
Will I have one point of contact?
[Describe your set-up, e.g. every job has one project lead who you can call or message throughout.]
Do you offer a guarantee on your work?
[State your workmanship guarantee and any insurance-backed warranty, e.g. a [X]-year guarantee.]
How soon can you start?
[Your typical lead time, e.g. we’re currently booking projects from [MONTH].]
Ready to start your project?
Book a free site survey. We’ll visit, talk through your plans and send a clear written quote, with no pressure to go ahead.