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 Belfast before agreeing to start the work.

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

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 Belfast 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 Belfast loft conversion companies offer strategies to minimise disruption, but in complex projects, temporary relocation may be advisable.

Loft Conversion Companies in Belfast

Some of our top rated loft conversion companies in Belfast

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Kevin Clarke
No reviews yet
Loft Conversion Company in Belfast
39 years experience. Punctual, reliable, trustworthy and pride in completing a good job. Expect clients to reciprocate the above, and also honour prompt payments.
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Carlen Construction Limited
Rating: 5 out of 5
Loft Conversion Company in Belfast
Carlen Construction is a family based construction company with over 20 years combined experience in the construction industry. Carlen offer a wide range of professional and quality assured building services for the residential, commercial and public sectors throughout Northern Ireland. We provide construction with customer service. We specialize in renovations, extensions, new builds and refurbishments. We undertake work of all scales, from very small to large.
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Latest review:
Conversions - General- 16 Sep 2023
100% recommend. John had carried out multiple jobs around the house. Wall Knocked Through, Fire placements removed, doors & frames installed. Quick and clean process, all done within a week. Any issues John has sorted and made sure all the work was checked before completion. Working 9-5 myself, John was very cooperative and communicative through out, All mess was cleared up and process was hassle free. Reasonable price for all the work. Would use recommend and use again for future renovations.
E.S.JBuilding&Joinery
No reviews yet
Loft Conversion Company in Belfast
We do all types of building and joinery work Loft conversions Extensions Decking & fencing Garden bars 1st & 2nd fix joinery ect. All work finished to the highest standard
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barry murray plastering services
Rating: 5 out of 5
Loft Conversion Company in Belfast
Hello,Iam a plasterer from Newry co down I have 30 years experience in all aspects of plastering I’ve done it all I can hire quality tradesmen to complete larger projects All my work is complete to a high standard,I also have vast experience in all types off construction, Attic conversions, Windows and doors, Velux windows, Bathroom remodeling, Paving and concrete, Fencing and gates,
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Latest review:
Restoration & Refurbishment- 3 May 2025
Job ended up bigger than expected but Barry cracked on and got it done without any issues at a fair price. Highly recommended.
Rocks Joinery & Tiling
No reviews yet
Loft Conversion Company in Belfast
All aspects of joinery work new builds & renovations. Fencing & decking supply & fit .Wall & floor Tiling .Bathroom refurbs
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J Davenport Roofing
No reviews yet
Loft Conversion Company in Belfast
Been a joiner for 23 year doin all aspects of joinery from roofing, tiling/slating All lead works First and second fixes. PVC fascia soft Guttering. Erecting of timber frame houses/sheds Fit windows Decking wooden and composite.
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Paul Devlin Design & Joinery
Rating: 5 out of 5
Loft Conversion Company in Belfast
Paul Devlin Design & Joinery All aspects of Design & Joinery Work carried out From initial Sketch to Detailed CAD & 3D Models right through to All Joinery work to be carried out on any Domestic or Commercial Sites. Works include:- -Design Work CAD/ 3D -1st & 2nd Fix Joinery -Roofing -Shop/ Commercial Fit Outs
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Latest review:
Carpentry- 1 Apr 2019
Paul arrived on time and was pleasant and friendly. The job took longer than expected but he came back the next day and worked late until it was done. We were very pleased with the job Paul did of laying out parquet floor and wouldn’t hesitate to recommend him.
MCJ
Rating: 5 out of 5
Loft Conversion Company in Belfast
MCJ Joinery and property maintenance services, We do all aspects of joinery, any handyman jobs or general property maintenance, have large van and can do pick ups/drop offs
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Latest review:
Carpentry- 9 Feb 2019
Awesome joinery service.
Clog Construction
No reviews yet
Loft Conversion Company in Belfast
Any building and joinery contracts undertaken with over 10 years experience in the building trade we pride ourselves on the quality we provide on ever project we undertake, and take care to provide the finest aftercare service- new to my builder
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