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House Extension Professionals in Portsmouth, Hampshire

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Portsmouth / 25 mi
Design & Build
House Extensions
1 – 15 of 64 professionals
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64 Professionals

Featured Reviews for House Extension Professionals in Portsmouth, Hampshire

Raylian Power Design
House Extension Professionals in Portsmouth, Hampshire
Average rating: 5 out of 5 stars24 May 2021
“We hired Nick and Paul at Raylian to lead a tricky 550 m2 office conversion into residential space in a prime location central Chiswick. Along with the practice personal creative skills I was very impressed by their technical know how. The teams knowledge of building regulations, local authority planning requirements and technical building skills saved me a substantial amount in architects fees and it was comforting to experience their confidence when addressing the builders and trades and the respect they attracted. The creative design planning stage and specification for finishes and furnishings was professional and stress free. It was great to have a designer sketch their ideas while explaining their thoughts. Discussing ideas in 3D is a real advantage. Given the licence to express themselves they came up with some really great ideas. Project management was equally important, especially with all the H&S requirements attached to the industry these days. I also felt once the budget was approved they made a good effort to protect it right through to completion. Raylian are a one stop shop for any size of residential project and I am happy to give them a 5 star review. AW. Chiswick.”
Maltwood
House Extension Professionals in Portsmouth, Hampshire
Average rating: 5 out of 5 stars17 April 2016
“Without doubt the best development and construction team in London. Did a fantastic job on our photo studio. Clients exceptionally happy.”
BHI Building Services
House Extension Professionals in Portsmouth, Hampshire
Average rating: 5 out of 5 stars21 December 2023
“We are glad that we chose BHI to construct our new extension, Sean and his team were professional, courteous and trustworthy. We had no reservations about moving out of the house and leaving our home and contents in Seans capable hands during construction. All aspects of their work was carried out to a high standard and Sean was always keen to see that the client was satisfied. We would highly recommend them and happily use them again.”
Next Gen Luxury Homes Ltd
House Extension Professionals in Portsmouth, Hampshire
Average rating: 5 out of 5 stars4 January 2024
“My kitchen was completely transformed. It was exactly as I wanted and the job was completed on time. Very professional. Highly recommended. Francisca Parsons”
CHT Building Solutions Ltd/Renaissance Orangeries
House Extension Professionals in Portsmouth, Hampshire
Average rating: 4 out of 5 stars1 March 2016
“Chris Tiplady, is the man with whom I discussed the replacement and enlargement of the old conservatory with a new one customised to our specific requirements. He delivered the product on time, on budget and exactly to specifications. He was very much hands on the job and always ready and willing to resolve possible problems with grace, confidence and professionalism. He takes pride on what he does and delivers with expertise. G. Di Giulio”
Hestia Trustins LTD
House Extension Professionals in Portsmouth, Hampshire
Average rating: 5 out of 5 stars28 April 2021
“We are totally pleased with your company, your people, and your subcontractors on the craftsmanship of your product. We continue to be totally satisfied with the building that you built for me two years ago.”
Refresh Renovations - Surrey
House Extension Professionals in Portsmouth, Hampshire
Average rating: 5 out of 5 stars2 July 2019
“Professional, organised, efficient, trustworthy (we just gave them a key and let them get on with it) and genuinely pleasant, helpful people to have do major work for you. They listen to you, work out solutions to turn your dream into reality (no matter how problematic) and provide excellent value for money. First-rate project management - getting plumbers, electricians, carpenters, painters, tilers and plasterers lined up to come in on time one after the other, they turned our worn-out, antiquated and quirky bathroom into something fit for a luxury hotel, more or less within the relatively short timescale quoted.”
South Coast Design & Build
House Extension Professionals in Portsmouth, Hampshire
Average rating: 5 out of 5 stars22 September 2021
“Cannot fault and would definitely recommend to friends and family!”
Pegasus Builders
House Extension Professionals in Portsmouth, Hampshire
Average rating: 5 out of 5 stars1 July 2021
“In November last year, 2020, during a period of lock down, we had a serious water leak under our kitchen floor, and no idea what was causing it. I contacted Pegasus, our local builder, to seek help as a matter of some urgency! Although clearly busy, Pegasus responded straight away, sending a senior manager to assess the situation, which my wife and I - senior citizens who live on our own - much appreciated. They were then able to provide a very good workman to investigate and identify the cause of the leak which was then quickly rectified. Further work was then carried out to repair the damage prior to another local company laying the new floor covering. We are very grateful to Pegasus for their prompt action leading up to Christmas, to what was to us a crisis; all those we met and spoke to were always very helpful and pleasant and thoroughly professional and workmanlike at all times.”
RP Superstructures
House Extension Professionals in Portsmouth, Hampshire
Average rating: 5 out of 5 stars27 November 2018
“We at Saffron Interiors have worked alongside Gerry and his team at RP Superstructures on 4 different projects and on each occasion they have delivered a fantastic service and finish. Sites are well run and communication is always easy. We have no reservation in recommending this company.”
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Design and Build Company FAQs
A house extension is a construction process that involves expanding the footprint of your existing home. This could be extending outwards, either to the side or rear of the house, or upwards by adding another storey. House extensions provide extra living space and can significantly increase the value of your property.

House extensions can be categorised based on direction, structure and function. The main types include rear extensions, side return extensions, wrap-around extensions, and double or single-storey extensions. More specific ones could be kitchen extensions, loft conversions, basement conversions, garage conversions or conservatories. Select the type that best suits your property and meets your space needs, if you are unsure, speaking with a local home extension builder in Portsmouth.

Generally, house extensions are worth the investment. They provide additional living space and can dramatically increase the resale value of your home, often covering the initial investment cost. However, plan carefully and choose a reputable house extension builder to ensure a high-quality build that will add value to your property.

The cost of a house extension can vary significantly based on several factors, such as the size, complexity of the design, quality of materials used, and geographical location. However, as a rough estimate, a single-storey extension can range from £1,000 to £2,000 per square metre, whereas a two-storey extension can start at around £1,500 per square metre.

Planning a house extension involves several stages, including idea generation, design, planning permission, and construction. Consult with a house extension architect to create a design based on your needs and budget. Ensure to check with your local council about planning permissions. Finally, choose a reputable house extension builder to bring your vision to life.
Why Hire Design & Build on Houzz?
64Local Pros on Houzz Who Serve Portsmouth, Hampshire
95,000+Total Number of Reviews Left by Homeowners
Are you considering a house extension? On Houzz, you can find an extensive selection of Portsmouth house extension professionals near you, eager to turn your vision into a reality. Whether you're planning an extra bedroom, expanding your kitchen or designing a brand-new workspace, these professionals have the skills and expertise to make your project successful. House extension professionals include architects who can draw up detailed plans and builders who will execute them to the finest standards.

Choosing a house extension professional on Houzz ensures peace of mind, knowing that you’re in safe hands. They come highly recommended with a strong track record of creating bespoke, high-quality extensions in Portsmouth in a wide range of styles and budgets. Whether planning a new kitchen extension, adding a new storey, or just wanting more living space, find your house extension solution with us.

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