House Extensions
Single-storey, side return, wraparound and two-storey extensions, plus porches and garage conversions, built from the foundations to the finishes.
More about extensionsBuilders in Brighton & Hove
B-Right-On Construction builds house extensions in Brighton, from single-storey kitchen extensions to two-storey additions and porches. We’re a local building company run by Cliff, who has over 40 years in the trade, and we also take on house refurbishments and general building work across Brighton, Hove, Shoreham and Southwick.

House extensions
A well-built extension gives you the room you need without the cost and upheaval of moving. We build rear kitchen and living extensions, side returns on Victorian terraces, wraparound and two-storey extensions, porches and garage conversions for homes all over Brighton and Hove.
We look after the whole build: the groundworks and foundations, drainage, brick and blockwork, the steel beams that open the house up into the new space, the roof, and the plastering and finishes inside. Cliff will talk you through what’s possible on your property and can advise on planning permission and building regulations before anything starts.
Services
From a new extension or a full house refurbishment to structural alterations, roofing and damp work, it’s all handled by Cliff and his team.
Single-storey, side return, wraparound and two-storey extensions, plus porches and garage conversions, built from the foundations to the finishes.
More about extensionsWhole-house and room-by-room refurbishments: layout changes, re-plastering, new kitchens, flooring and finishes, managed as one job.
More about refurbishmentsA local builder for the jobs in between: structural repairs, brickwork, rendering, garden rooms, groundworks and new builds.
More about building workLoft rooms and conversions, including space-saving staircases where a standard flight won’t fit.
More about loft conversionsLoad-bearing walls opened up with steel beams, chimney breasts taken out and layouts changed, safely and with building control sign-off.
More about structural workSkimming, re-plastering and plasterboarding inside; rendering and render repairs outside.
More about plastering and renderingFlat roofs in mineral felt or GRP fibreglass, tiled roof repairs, gutters and chimney work.
More about roofingRising and penetrating damp traced to the cause, put right, and the walls re-rendered and re-plastered.
More about damp proofing
House refurbishment
Whether it’s one tired room or a whole house that needs taking back to the brick, we handle the building side of a house refurbishment from start to finish. That can mean opening rooms up, removing chimney breasts, new ceilings and re-plastering, fitting a new kitchen, treating damp, and repairing and rendering the outside walls.
Brighton’s Victorian and Edwardian houses often hide a few surprises once the old plaster comes off. When we find something, we’ll explain what it is and talk you through the options before going any further.
How we work
The same six steps for an extension, a refurbishment or a smaller building job.
Call 07765 188882 or request a callback online, and tell us roughly what you have in mind.
Cliff visits, looks at the house, listens to what you want and talks through what’s possible.
You get a clear quote for the work, with no charge and no obligation to go ahead.
Where the job needs planning permission, building regulations or a party wall notice, we advise and help you get it sorted first.
Your home is protected, the site kept safe and tidy, and you’re kept up to date as the work goes on.
Plastered, made good and ready to decorate, with the building control sign-off where it’s needed.

Local builders
If you’ve searched for builders near me and found companies from all over Sussex, B-Right-On is the local option. We’re a Brighton building company, not a national firm, so the person who comes to look at your job is Cliff, who runs the business.
As a general builder we take on work of all sizes as well as extensions: structural repairs, rendering, roofing, garden rooms, groundworks and new builds. We work for homeowners and for landlords with more than one property, and customers tell us they value the clear communication, the care taken with their homes and the tidy finish.
Recent work
A selection of our own jobs, from garden rooms and kitchens to loft stairs and roofing. Every photograph on this site is B-Right-On’s own work; none of them is stock.






Reviews
Summarised in our own words from B-Right-On Construction’s Google reviews. Read them all on Google.
They took out a wall in my living room and had the whole job finished in two days. Cliff kept me up to date, explained every step, made sure the removal was safe and checked I was happy at the end. I’d choose them again.
Polite, professional and tidy. They quickly found what was causing the rising damp in our dining room and the damp coming through from the chimney stack, and put it right to a good standard for a reasonable price.
Cliff made a custom loft staircase work in a really awkward space, and it looks as if it was built for it. He’s also helped with plastering and sealing the roof, always with a sensible solution at a fair price.
Polite, on time and very knowledgeable. We had a set budget and Cliff helped us get exactly what we wanted within it. An honest, friendly company that does a high standard of work.
Everything we asked for was done. The two people who did the work protected everything and left the house clean every time they finished for the day.
They replaced our rotting decking with a patio that feels like an extra room, and came up with a cost-effective answer to a neighbour’s failing fence. Hard-working, quick, polite and clean.
Brighton & Hove, Shoreham and Southwick
Open in Google MapsAreas we cover
We’re based in Brighton and work right across the city and along the coast, from Shoreham-by-Sea and Southwick in the west to Rottingdean, Saltdean and Peacehaven in the east.
FAQs
What people ask most before they book a builder. If your question isn’t here, call 07765 188882 and ask Cliff directly.
It depends on the size and type of extension, the foundations and ground conditions, the roof and glazing, and the level of finish inside. Rather than give a figure that could mislead you, we’ll come and look at the house, talk through what you want and give you a detailed quote. Quotes are free and there’s no obligation.
Not always. Many single-storey rear and side extensions can be built under permitted development rights, within limits on size, height and materials. Houses in a conservation area, listed buildings, flats and maisonettes have fewer rights or none, and large parts of Brighton and Hove are conservation areas. We’ll tell you whether your project is likely to need an application to Brighton & Hove City Council, and help with it if it does.
It depends on the size and complexity of the extension, but most take between 8 and 16 weeks to complete. Planning permission and building regulations approval, where they’re needed, come before that, so it’s worth talking to us early.
Yes. An extension needs Building Regulations approval even when it doesn’t need planning permission. Building control checks the foundations, structure, insulation, drainage and fire safety as the work goes on, and you get a completion certificate at the end, which you’ll want when you come to sell.
In most cases, yes. We plan the work to keep disruption down and keep your home safe and usable throughout. Most of the building happens outside until the new structure is weathertight; the messiest stage is usually knocking through into the house, and we plan that carefully.
Yes. We refurbish single rooms and whole houses: opening up layouts, removing chimney breasts, re-plastering, fitting kitchens, dealing with damp, and repairing and rendering the outside of the house. If you’re extending, it’s often a good time to refurbish the rooms around the new space too.
Yes. The structure above is propped while the wall or chimney breast comes out, then carried on a steel beam or supports sized for the load, normally by a structural engineer. Building control inspects the work, and we make good and re-plaster afterwards.
If the work involves a wall you share with a neighbour, or digging foundations close to their house, the Party Wall Act usually means serving them notice before work starts. It’s straightforward when it’s done early, and we’ll let you know if it applies to your project.
Yes. We offer free, no-obligation quotes for all projects. Call us or request a callback to arrange a visit and a chat about what you have in mind.
Cliff, who runs B-Right-On Construction and has over 40 years in the building trade. He’ll come out to see the job, talk you through the options, and stay your point of contact while the work is carried out.
Brighton and Hove, Portslade, Southwick, Shoreham-by-Sea, Rottingdean, Saltdean, Peacehaven and the areas in between. If you’re not sure whether we cover you, just ask.
Call 07765 188882, Monday to Friday, 7:30am to 5pm. If we’re on site and can’t answer, leave a message or request a callback through the website and we’ll get back to you.
Tell us what you have in mind and Cliff will call you back to arrange a visit and a free, no-obligation quote.