How long does a loft conversion take?

Typically, a loft conversion can take between **6 and 12 weeks**, depending on complexity, planning permissions, and any structural work required. Be sure to discuss the timeline with any potential loft conversion companies in Trowbridge before agreeing to start the work.

Do I need planning permission for a loft conversion in Trowbridge?

Many loft conversions fall under **permitted development**, but some require planning permission, especially if you’re adding a dormer, extending the roof, or living in a listed building. A professional Trowbridge loft conversion company can advise and handle permissions for you.

Will a loft conversion affect my home insurance?

**Yes, you’ll need to update your home insurance to cover the conversion**. Inform your provider about structural changes, additional rooms, and any changes to utilities or heating systems.

Can I stay in my home during the loft conversion?

**Many loft conversions allow you to remain in your home**, though noise and dust are inevitable. Some Trowbridge loft conversion companies offer strategies to minimise disruption, but in complex projects, temporary relocation may be advisable.

Loft Conversion Companies in Trowbridge

Some of our top rated loft conversion companies in Trowbridge

116 Results

Sort by:

Marshall Meacock
No reviews yet
Loft Conversion Company in Trowbridge
Hi, I’m a reliable and hardworking tradesman with 7 years of experience in plasterboarding on building sites and in private residential properties, as well as 1 year of experience in loft conversions. I have experience working on all types of houses and enjoy taking on a wide range of building projects. I’m happy to help with all types of general building work and take pride in being versatile, hardworking, and delivering quality workmanship. I understand the importance of reliability, good communication, and keeping customers happy. I always aim to complete every job to a high standard, treat every home with respect, and leave the work area clean and tidy. Whether you need help with a loft conversion, plasterboarding, or general building work, I’m happy to discuss your requirements and find the right solution for your project. Customer satisfaction is important to me, and I always strive to provide a friendly, professional, and reliable service from start to finish. Please feel free to get in touch to discuss your project. I look forward to helping you!
Get in touch
Onyx building and roofing
Rating: 3 out of 5
Loft Conversion Company in Trowbridge
Hi, I’m Ashley , Owner of Onyx building & Roofing – Professional building & Roofing Services in South Wales Welcome to Onyx building &Roofing, your trusted local construction specialist serving South Wales and the surrounding areas. With years of experience in the industry, we offer reliable, high-quality building & roofing solutions tailored to your needs. Whether it’s a minor repair, full roof replacement, or regular maintenance, we take pride in delivering honest advice, expert craftsmanship, and long-lasting results. At Onyx building & Roofing, no job is too big or too small – every project is completed with care and precision. 🏠 Serving homes and businesses across South Wales 🛠️ Slate | Tile | Flat Roofs | Repairs | Guttering & More ✅ Fully Insured | Free Quotes | Competitive Pricing Looking for somebody you can count on? Contact Onyx building & Roofing today!
Get in touch
Latest review:
Conversions - General- 28 Aug 2026
We initially contracted Ashley and the team at Onyx to knock through an internal structural wall to extend our kitchen, install a steel beam, plaster board and make good. They did an excellent job taking the calculations from the structural engineer and completing the work quickly and to a high standard. One of the best things about them is that Ashley always responds very quickly to WhatsApp, this is both reassuring and really helped organise the process with other trades. Based on the quality of the building work, we have since had Ashley and team at Onyx back to fit our whole new kitchen including replacing our old damaged kitchen floor and fitting LVT. They are perfectionists with great attention to detail and the quality of the finish is excellent. I highly recommend Onyx.
K.BUTCHER BUILDS LIMITED
No reviews yet
Loft Conversion Company in Trowbridge
At ETC we strive to deliver the best possible solution to all building needs. ETC consists of two best friends with over a decade of experience in the building industry, both bring there respected trades into the mix which leaves no stone unturned when it comes to the job at hand. At ETC we are well connected with a plethora of trades so if we can't do it we will definitely have someone on hand who can. If you'd like to know more about us just give us a call.
Get in touch
Cotswold Oakwood Limited
No reviews yet
Loft Conversion Company in Trowbridge
We specialise in creating refined, bespoke luxury extensions and renovations that perfectly align with your property and vision. Excellence in every detail.
Get in touch