Builders in Chiswick

Much of Chiswick's housing dates from the late Victorian and Edwardian periods, with handsome bay fronts, original cornicing, sash windows and the kind of proportions that are worth protecting. These homes reward sensitive work. A rear or side return extension can open up a tight kitchen, a loft conversion can add a bedroom or study without taking garden space, and a full refurbishment can bring tired services and layouts up to a modern standard while keeping the period feel intact.

The practical side is just as important. Older properties often hide surprises behind the plaster, from dated wiring to settlement and damp, so a thorough survey at the outset saves time and money later. As a design and build contractor we handle the design, the technical detail and the construction together, which keeps decisions joined up and avoids the gaps that appear when separate firms hand work back and forth.

A kitchen extension in Chiswick usually goes into the side return of a Victorian or Edwardian terrace, sometimes wrapping round the back to make one open kitchen, dining and living room facing the garden.

Our guide to kitchen extensions in West London walks through those choices on exactly this housing, our kitchen extension cost guide sets out the figures, and our kitchen extensions page shows how we design and build them. You can try each layout first in our free extension planner.

A rear extension adds depth to the ground floor, and a two storey extension adds a bedroom and shower room as well as ground floor space. Whether the side return or the back of the house is the better place to build is covered in our guide to rear extension or side return, and our house extensions page sets out how we take an extension from survey to handover.

A loft conversion in Chiswick is most often a rear dormer, sometimes with a hip to gable on a semi detached house, to add a bedroom and bathroom without giving up any garden. Seven Oak, below, is one of ours. Our guides cover Victorian loft conversions and what a loft conversion costs in London, and our loft conversions page explains which type suits which roof.

In Chiswick each of these meets the conservation areas. Bedford Park and Strand on the Green are two of the best known, and in them the street side of a house is protected far more closely than the back. We design with that in mind from the first drawing, prepare the drawings and supporting information, and guide the application through Hounslow Council, which is why our guides spend as long on planning as on cost.

Typical London jobs priced on our estimator in October 2026, all ex VAT and indicative rather than a quotation:

• A single storey extension of about 20 m² of new floor, flat roofed, plus making good the room it joins: around £57,000.
• New above ground space at a standard specification: £2,650 to £2,900 per square metre of new floor.
• Rear dormer loft conversions: £68,000 to £81,000.
• A whole house refurbishment with a new extension: £1,100 to £1,350 per square metre of floor worked on.

Kitchen units, worktops and appliances are priced separately. Our minimum for a complete extension project, including finishes and fittings, is around £85,000. The full breakdowns are in our house extension cost guide and loft conversion cost guide, and the free estimate prices your own project in two minutes.

We offer a single, accountable route from concept to completion. Our services cover design and build, house extensions, loft conversions, full home refurbishments, listed building and period property work, bespoke joinery and kitchen renovations, so most projects in Chiswick can be delivered without juggling multiple contractors. We carry public liability cover of up to 10 million pounds, and we plan each job with clear stages so you always know what is happening and why.

Good communication is part of the craft. We talk through choices in plain terms, set out realistic timelines and keep the site tidy and considerate, which matters on Chiswick's closer streets where parking and neighbours are part of daily life. The aim is a finished home that looks effortless and lasts.

Seven Oak is a residential loft conversion we completed in Chiswick. The work added an additional bedroom, a bathroom and a study area, fitted out with modern amenities and finished to give the upper floor a cohesive, aesthetically pleasing look that sits comfortably with the rest of the house.

It is a good example of how a loft can earn its keep in a Chiswick home, creating genuinely useful rooms within the existing footprint rather than building outwards. The same care for proportion, light and detail guides every project we take on in the area.