Sharon Francis
Google review · Flooring
★★★★★
“Job completed in good time and to a high standard.”Read reviews on Google
Baaj Construction Ltd · London & surrounding counties
London builders.
For your home.
Builders based in Hayes, serving London and the surrounding counties. House extensions, loft conversions, new builds and renovations, from groundwork to the finishing details.
Local construction teamWritten quotationsAgreed payment stages
Google4.924 reviewsFrom structure to finishExtensions & loftsKitchens & bathroomsStructural steelHeating & electrics
Feedback from our customers
What homeowners
say about Baaj.
Google
Mubo
Google review · Loft steel installation
★★★★★
“they did a fantastic job.”Read reviews on Google
Leonard Johnson
Google review · Professional service
★★★★★
“very professional and efficient”Read reviews on Google
Selected review excerpts. Rating and review count checked 12 October 2026.
Explore the possibilities
More space.
A considered finish.
Illustrative design concepts for extensions, lofts, new homes, kitchens, bathrooms and garden rooms. View our actual project updates on Instagram and TikTok.
Extensions
Rear extension ideas
Explore this serviceLofts
Loft conversion ideas
Explore this serviceInteriors
A kitchen to gather in
Explore this serviceInteriors
A calmer everyday space
Explore this serviceGarden rooms
Space beyond the house
Explore this serviceNew builds
New home ideas
Explore this serviceWhere we build
London and the
surrounding counties.
From our base in Hayes, we help homeowners create more space and improve the homes they love across London and the surrounding counties.
Planning an extension, loft conversion or renovation? Send your postcode, a few details and any drawings to start a conversation.
Discuss your locationWhat we build
Your plans.
Our construction expertise.
Add space, update your home or build something new. Find the service that fits your project.
Service illustration01
House extensions
Rear, side and double storey extensions, built around how you want to live.
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Service illustration02
Loft conversions
Dormer and hip-to-gable conversions that turn unused roof space into useful rooms.
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Service illustration03
New builds
Residential construction, from foundations and structure to the final finish.
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Service illustration04
Full house renovations
Structural changes, kitchens, bathrooms and finishes brought into one coordinated project.
Explore the serviceAlso covering roofing, structural alterations, kitchens, bathrooms, external insulation and silicone render.
The team behind your build
Local builders.
A personal approach.
Baaj Construction Ltd is based in Hayes. We work with homeowners on extensions, loft conversions, new builds and refurbishments across London and the surrounding counties.
Get to know Baaj01
Your project, clearly defined.
We discuss your priorities and record the agreed work in a written quotation.
02
The build brought together.
Groundworks, structure, services and finishes coordinated around one agreed scope.
03
A direct conversation.
Speak with our team about your plans, your specification and the next step.
Project experience
Different homes.
Considered solutions.
Behind the build
Follow our
project updates.
Explore our actual project photographs and videos directly on our social accounts.
Build with clarity
Know the work.
Know the next step.
Your home is a major project. Start with a clear scope and a direct conversation with the people building it.
One coordinated scope
Structural work, services and finishes brought together around your agreed project.
Written quotations
Know the included work, finish specification and client-supplied items before the build.
Stage payments
Discuss the payment stages and expected programme before work begins.
A direct conversation
Call or WhatsApp the Baaj team with your drawings, questions and project details.
How we work
A clear process,
from first conversation.
Understand the work, agree the scope and know the next step.
01
Talk through your plans
Tell us about the property, the work you need and your priorities.
02
Review the scope
We discuss your drawings and arrange a site visit where needed.
03
Agree the details
Your written quotation sets out the included work. We agree the programme and payment stages.
04
Build and finish
We coordinate the agreed work and review the finish with you at handover.
Before you begin
A few useful
answers.
Planning a build starts with the right information.
Do I need drawings before contacting you?
You can contact us while you are still planning. If you already have architectural or structural drawings, mention them in your enquiry. We will discuss what information is needed for a written quotation.
Which areas do you cover?
We cover London and the surrounding counties from our base in Hayes. Send your property postcode and the work you are planning so we can discuss your project.
Can you manage a full refurbishment?
Yes. Our services include structural alterations, plumbing, heating, electrics, kitchens, bathrooms and finishes. The included work is agreed for each project.
How much will my project cost?
The cost depends on your drawings, site conditions, size and finish specification. Tell us about your project so we can discuss the scope and prepare a quotation.
How long will the work take?
The programme depends on the work, access, design information and material lead times. We discuss the sequence and expected programme before work starts.
Your next project
Let’s talk about
your home.
Have drawings ready, or still deciding what is possible? Tell us what you are planning and where the property is.
Based in Hayes, covering London and the surrounding counties.
Send your postcode and plans to discuss your project.
Explore our service area.
Send your postcode and plans to discuss your project.
Explore our service area.