Services
We only take on five kinds of job.
They’re the jobs we do every week, which is why our prices hold and our programmes don’t slip. If yours isn’t one of them, we’ll say so, and usually tell you who to call.
01 / 05
Extensions
Rear, side-return and wraparound extensions for Victorian and Edwardian terraces. Most of our work, and what we know best.
- Typical time
- 14–24 weeks
- Typical price
- From £95k
- Typical size
- 20–40 m²
What’s included
- Measured survey and structural design
- Party wall notices and awards
- Steel-framed glazing and rooflights
- Kitchen fit-out, coordinated with your supplier
Good to know
Most rear extensions don’t need planning permission. We check at the first visit.
02 / 05
Loft conversions
Dormer and mansard lofts that give you a proper bedroom and bathroom, with room to stand up and somewhere to put the wardrobe.
- Typical time
- 10–14 weeks
- Typical price
- From £70k
- Typical size
- 25–35 m²
What’s included
- Structural steels and a new staircase
- Building control and fire safety sign-off
- Bathroom with plumbing and ventilation
- Built-in storage in the eaves
Good to know
You can usually stay at home: we work from scaffolding outside until we break through in week 6.
03 / 05
Kitchens & refurbishment
Kitchens, bathrooms and whole floors, done without moving walls you don’t need to move.
- Typical time
- 8–20 weeks
- Typical price
- From £45k
- Typical size
- Any size
What’s included
- Rewiring and replumbing
- Joinery and fitting
- Plastering, flooring and decoration
- Taking away the old fittings
Good to know
Buying your kitchen elsewhere? We coordinate with the supplier and fit it.
04 / 05
Basements
Full basements under terraced houses, with lightwells that bring real daylight down.
- Typical time
- 24–36 weeks
- Typical price
- From £250k
- Typical size
- 40–70 m²
What’s included
- Structural engineering and underpinning
- Waterproofing with a 10-year guarantee
- Lightwells and glazing
- Pumps, ventilation and fire escape
Good to know
Basements always need planning permission and a party wall award. Allow 3–6 months before we start.
05 / 05
Whole-house restoration
Period houses taken back to their bones and put back together, often in conservation areas.
- Typical time
- 30–50 weeks
- Typical price
- Priced after survey
- Typical size
- 120–250 m²
What’s included
- Structural repairs and new services throughout
- Lime plaster, sash windows and original details repaired
- Conservation and listed building consent
- Phased work if you need to stay in
Good to know
Listed? We’ve worked on 14 Grade II houses with the Islington and Hackney conservation officers.
Whatever the size
Every job comes with these.
Small kitchen or Grade II restoration, these are written into the contract.
A measured survey
Laser-scanned and drawn, before anyone guesses at a price.
An itemised fixed price
Every line priced. What you sign is what you pay.
Permits handled
Building control, party wall and planning, managed by us.
One site manager
The same person from the first brick to the final snag.
A Friday report
Photos, progress and decisions, every week by 5pm.
A 10-year warranty
Insurance-backed, and transferable if you sell.
Cost guide · London 2026 · ex VAT
What things really cost.
These ranges come from our last 40 jobs, so they’re what people actually paid. Your own fixed price comes after the survey, within ten working days. — Priya
| Type of work | Typical size | Typical time | Price range |
|---|---|---|---|
| Rear extension | 20–40 m² | 14–24 weeks | £95k – £160k |
| Side-return extension | 12–20 m² | 12–18 weeks | £75k – £120k |
| Loft conversion, dormer | 25–35 m² | 10–14 weeks | £70k – £110k |
| Kitchen & refurbishment | Any size | 8–20 weeks | £45k – £140k |
| Basement | 40–70 m² | 24–36 weeks | £250k – £450k |
| Whole-house restoration | 120–250 m² | 30–50 weeks | £1.6k – £2.4k / m² |
Not included: architect fees, loose furniture, appliances you choose yourself.
Get a rough price in two minutesQuestions
What people ask
at the first visit.
Do I need planning permission?
Most rear extensions and dormer lofts fall under permitted development, so you don’t. If yours doesn’t, or you’re in a conservation area, we tell you at the first visit and handle the application with the architect.
Can we stay in the house during the work?
On most extensions and lofts, yes. We set up a temporary kitchen if you need one and seal off the work area. Basements and whole-house jobs usually mean moving out for part of the build.
What isn’t included in the fixed price?
Architect fees, loose furniture and appliances you choose yourself. Anything we can’t see until we open up, like what’s behind a wall, goes in as a separate line with a ceiling. Priya can’t stand open-ended provisional sums, so ours always have a maximum.
How soon can you start?
We’re booking starts for March 2027. Surveys and design can begin now, so you’re ready when your slot comes up.
Do you work outside north and east London?
We work within about five miles of our yard in N1: Islington, Hackney, Camden, Haringey and Tower Hamlets. It’s how your site manager can be with you in 20 minutes.