Hounslow stretches from the Thames at Chiswick, Brentford and Isleworth out to Feltham and Cranford near Heathrow. The housing changes just as much: Arts and Crafts houses in Bedford Park, Victorian terraces around Brentford and Isleworth, and large areas of interwar and post-war estates further west.
London Building Contractors
Reliable Builders in Hounslow for Quality Work
What We Do
Building Services from Hounslow Builders
Every service below is delivered by our own in-house tradespeople, fixed-price and fully insured, so you get dependable builders in Hounslow from survey to handover.
Loft Conversions in Hounslow
Transform your home with expert loft conversions in London by Alpha London Builders. From design and planning to construction, we deliver quality loft conversions tailored to your needs.
Learn more →House Extensions in Hounslow
Rear, side return, wraparound and double storey extensions designed and built to fit seamlessly with your London home.
Learn more →Basement Conversions in Hounslow
Cellar conversions, basement lowering and full new excavations, engineered and waterproofed to BS 8102 by our in-house team.
Learn more →Garage Conversions in Hounslow
Integral, attached and detached garage conversions into bedrooms, offices and annexes, most without planning permission.
Learn more →Property Refurbishment in Hounslow
Cosmetic updates through to full structural refurbishments, managed under one dedicated site manager from start to finish.
Learn more →General Building in Hounslow
Repointing, roof repairs, damp treatment, brickwork and small structural alterations, carried out by our own trades.
Learn more →Design & Build in Hounslow
One team, one contract, one fixed price for design, planning, structural engineering and construction on your project.
Learn more →New Builds in Hounslow
New homes and replacement dwellings built from foundation to final finish, with zero-rated VAT on construction costs.
Learn more →Commercial Building in Hounslow
Office, retail and restaurant fit-outs across London, delivered around your trading hours with minimal disruption.
Learn more →Residential Building in Hounslow
The full range of residential building work, from a single repair to a new build, delivered by one London contractor.
Learn more →Building Demolition in Hounslow
Safe, fully licensed demolition work across London, from internal wall removal to complete house demolition ahead of a new build.
Learn more →Why Choose Us
Why Choose Our Hounslow Builders
Bedford Park and conservation areas
We check designations first and design extensions that respect the brickwork, windows and rooflines that matter to the council.
Flood zones considered
Near the Thames we look at floor levels, drainage and flood zones early, so designs hold up at planning.
Interwar housing experience
Hounslow and Feltham streets suit dormer lofts and rear extensions, and we build them with our own trades.
Heathrow-aware detailing
We specify glazing and insulation sensibly for homes under the flight path, in line with Building Regulations.
Local Knowledge
Building & Planning Considerations in Hounslow
Hounslow has many conservation areas, with Bedford Park in Chiswick one of the best known, where the Arts and Crafts houses are carefully protected. Listed buildings need listed building consent for almost any change. Properties close to the Thames at Chiswick, Brentford and Isleworth may be inside a flood zone, which can affect floor levels and drainage in an extension. Elsewhere, standard permitted development rights for rear extensions and rear dormers usually apply to houses, but not to flats.
As Hounslow builders, every quote we provide for a Hounslow property starts with a check against Hounslow Council's conservation area maps and Article 4 register, so you know exactly which route your project needs before any design work begins.
Local Guide
Building in Hounslow: what to know before you start
The riverside and the runway
Chiswick and Gunnersbury have large Victorian and Edwardian houses and the Bedford Park estate. Brentford and Isleworth add terraces, riverside cottages and newer flats. Hounslow, Feltham and Cranford are mostly interwar semis and terraces on regular plots, and being under the Heathrow flight path is a practical consideration: good glazing and loft insulation matter for comfort, and Building Regulations insist on both anyway.
Matching projects to streets
On the interwar streets around Hounslow and Feltham, a loft conversion in Hounslow and a rear extension are the usual choices. Bigger Chiswick houses can take a basement or a full-width extension, and older properties are often best dealt with through refurbishment.
Check before you design
Find out whether you are in a conservation area such as Bedford Park, whether the house is listed, and whether the property is in a flood zone. Party wall notices apply to terraces and semis. Our survey covers all of these, and the written quote tells you what each means for time and cost.
What we do in Hounslow: Loft conversions in Hounslow · House extensions in Hounslow · Basement conversions in Hounslow · Garage conversions in Hounslow · Property refurbishment in Hounslow
Worth reading first: Do you need planning permission for a loft conversion? · How long does a house extension really take?
Nearby: Builders in Richmond · Builders in Fulham
Ready to talk? Book a free site survey and we will tell you in writing which planning route your address needs.
Areas We Cover
Areas We Cover in Hounslow
Chiswick
Bedford Park
Isleworth
Brentford
Hounslow Town
Feltham
Heston
Cranford
Don't see your street listed? Our builders in Hounslow cover the whole borough and the surrounding area — get in touch to check.
Our Work
Recent Hounslow Projects
A look at recent work carried out for clients in and around Hounslow.
Full House Rewire & Consumer Unit Upgrade
A complete rewire and 18th Edition consumer unit upgrade for a London flat, tested, certified, and signed off with a full Electrical Installation Certificate.
View Project →
Family Bathroom Renovation
A dated bathroom stripped back and rebuilt with full tanking, marble-effect tiling, underfloor heating, and a walk-in shower enclosure.
View Project →What Clients Say
Reviews from Hounslow
“Alpha converted our loft into two bedrooms and a bathroom without a single hiccup. They turned up when they said they would, kept the site tidy, and the finish is better than we hoped for.
”
Priya Shah
Loft Conversion, Walthamstow
Common Questions
FAQs About Builders in Hounslow
Is it hard to extend a house in Bedford Park?
It needs more care than most places. Bedford Park is a conservation area with distinctive Arts and Crafts houses, and some are listed. Rear extensions are often possible, but materials, proportions and anything visible from the street are examined closely. We check status before designing.
Do I need to worry about flooding for an extension in Brentford or Isleworth?
It is worth checking. Some riverside streets lie within an Environment Agency flood zone, which can affect floor levels, drainage and whether a flood risk assessment is required. We look at the flood map for your address during the survey.
Will the Heathrow flight path affect my building project?
It does not change planning rules, but it affects what makes a comfortable home. Better glazing, loft insulation and ventilation help, and Building Regulations already require good thermal performance. We can advise on sensible specifications at survey.
Can I do a loft conversion on a terrace in Hounslow or Isleworth?
Often yes. Terraced houses have a 40 cubic metre permitted development allowance, so the dormer needs to be sized accordingly, and conservation area or flat ownership would change this. A survey confirms the measurements.
Ready When You Are
Get a Free Quote from Our Hounslow Builders
Free site survey, a fixed-price quote within 48 hours, and one team from first fix to final handover.
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