Lofts, extensions, refurbishments

Put the house right, from the wiring out

We refurbish houses across London and the Midlands, from a refresh before letting to a back-to-brick rebuild. One team, one schedule, and a fixed quote once we've seen what's behind the plaster.

  • No deposit
  • Pay weekly for work done
  • Build schedule you can check daily
GardenStreet

How far does your house need to go?

Pick your house type, then compare the three options. Prices are guide ranges. Your quote is fixed after we've surveyed the house, because what is behind the plaster decides the job.

Your house

GardenStreet

Rewired, replumbed and replastered, with the layout opened up

Full refurbishment

New wiring, plumbing and plaster throughout, with a wall or two taken out.

Guide price
£71k to £142k
Best for
A house that has not been touched in decades, or a layout that no longer suits.
Planning
Not usually needed. Building Regulations and a structural engineer for any wall that comes out.
Build time
8 to 14 weeks

Most people move out for this one. Trying to live through it costs more than renting does.

Prices move with the house you pick, because a terrace is narrower than a detached and there is less to build. Guide prices reflect typical 2026 London rates and include VAT. Kitchens, bathrooms and flooring are chosen and priced with you. Build times are for work on site and don't include drawings or approvals.

What your quote covers

So you can compare us fairly with other builders, here’s exactly what is and isn’t in a Promaester quote.

Included

  • Survey, drawings and a room-by-room schedule of works
  • Strip out and disposal, including skips
  • First and second fix electrics, by a registered electrician
  • First and second fix plumbing and heating
  • Plastering throughout, walls and ceilings
  • Carpentry: doors, skirting, architrave and staircases
  • Decoration throughout
  • Building Control inspections and certificates

Quoted separately

  • Kitchen and bathroom units, worktops and sanitaryware
  • Floor coverings and tiling
  • Structural work where a wall comes out, priced after the engineer's calculations
  • Roof, windows and external repairs, priced after survey
  • Asbestos survey and removal, where the age of the house calls for one
  • Rewiring a consumer unit that is beyond its life

From first visit to finished room

Five stages. We manage each one and tell you what’s needed from you before it starts.

  1. Survey

    We visit, measure, check the structure and tell you what's realistic for your house.

  2. Drawings and calculations

    Architect plans and structural calculations, ready for Building Control.

  3. Approvals

    Lawful development certificate or planning, Building Control and party wall notices.

  4. Build

    We work room by room where you're staying, and floor by floor where you're not.

  5. Sign-off

    Building Control completion certificate and electrical certificates handed to you.

No deposit. You pay for progress, every Friday.

You never pay ahead of the work. Each Friday you pay for what was built that week, and only if the job has moved forward.

  • A live build scheduleShared with you as a Google Sheet and updated daily, including Building Control inspection dates.
  • Predictable site hoursMonday to Friday, 8am to 5pm, with a team of four to five on site.
  • A considerate siteNo radios and no smoking, at any point in the job.

Recent work

Photos from jobs we've built.

Full refurbishment in Bournville
Full refurbishmentBournville
Full refurbishment in Solihull
Full refurbishmentSolihull
Full refurbishment in Solihull
Full refurbishmentSolihull

See all our work

Questions people ask before booking

Through a cosmetic refresh, usually. Through a full refurbishment, rarely: the house has no working electrics or water for stretches of it, and living around that costs more in time than renting does. Back to brick, no.

Book a survey

We’ll visit, measure up and tell you what’s realistic for your house, along with a guide price for each option worth considering.

Prefer to talk it through?0800 099 6660