Many dormer roof installations qualify as permitted development and don't require planning permission, provided they meet specific criteria. However, you'll need permission if your property is in a conservation area, if the dormer faces a highway on the front elevation, or if it exceeds permitted size limits. Building regulations approval is always required regardless of planning permission status. We handle all necessary permits and ensure full compliance with local regulations.
Gable dormers feature a peaked triangular roof with two slopes, creating a classic, symmetrical appearance that maximises headroom. Hip dormers have a roof that slopes on three sides, forming a pyramid-like shape that blends more seamlessly with your existing roofline. Both styles add space and character, with your choice depending on your home's architecture and personal preferences.
Professional dormer installations increase your home's market value by creating additional functional living space, improving natural light throughout upper levels, and enhancing kerb appeal. They transform underutilised loft areas into desirable rooms whilst maintaining your property's architectural integrity.
Garage conversions cost varies depending on the size of your garage, the type of room you want to create, and the finishes you choose. On average, they are far more affordable than an extension or moving house. We provide detailed, transparent quotes so you can budget with confidence.
In many cases, garage conversions fall under permitted development rights, meaning you won’t need formal planning permission. However, if you live in a listed building or conservation area, additional consent may be required. We handle all necessary checks and guide you through the process if planning is needed.
Most conversions are completed within three to six weeks, depending on the scope of work and any structural adjustments required. Our project management ensures the work runs smoothly, with minimal disruption to your household. We always keep you updated on progress.
Yes, garage conversions often increase a home’s value by providing desirable additional living space. Buyers today look for practical extras such as home offices, gyms, or guest rooms. By converting your garage with Trusted Roofers, you’re making both a lifestyle upgrade and a smart investment.
Yes, we provide flat roofing services, roof lantern installs, fascias plus all other roofing services in and around the Swansea area.
Yes, we are based in Pontyclun provide flat roofing services, roof lantern installs, fascias plus all other roofing services in and around the Bridgend area.
Yes, we are based in Pontyclun provide flat roofing services, roof lantern installs, fascias plus all other roofing services in and around the Cardiff area.
Ethylene Propylene Diene Monomer
EPDM stands for ethylene propylene diene monomer, with the primary two ingredients being ethylene and propylene. The EPDM rubber membrane is a synthetic rubber that is used in a number of applications because of the advantages it offers.
One of the biggest advantages is its cost-effectiveness. Installing a flat roof is generally cheaper than pitched tile roofs, both in terms of materials and labour. Another key benefit is the long life expectancy of flat roofs, especially when done properly with EPDM.
50 years plus
An EPDM rubber roof is incredibly long-lasting and durable. The rubber recycled and used for the synthetic rubber membrane isn't damaged under the sun's UV or ultraviolet rays. If installed correctly, you can expect a rubber roof to in excess of up to 50 years.
Do I need planning permission for a garage conversion? Usually, planning permissions are not required as long as your conversion is not going to affect the exterior surface of the home; once the exterior surface of the home starts being tampered with, then planning permissions will be required.
You don’t normally require planning permission for a standard room-in-roof loft conversion – that may include a dormer – unless:
· the newly converted space is over 50m³ (40m³ for a terraced home);
· the dormer is beyond the plane of the existing roof slope on the front elevation.
· the dormer is higher than the current highest part of the roof (this is often the case in mansard style extensions);
· you want to include side windows that are non-obscure glazed and/or less than 1.7m above the floor.
· you live in a specially designated area such as a Conservation Area or your home is listed;
· the dormer will be within 20cm of the eaves.
It is always best to check with your local planning department to clarify the above.
Regardless of whether it needs planning approval, a loft conversion will require Building Regulations approval.
Recent studies show that a loft conversion that added a double bedroom and bathroom to a three-bed, one-bathroom house can add about 20 per cent to its value — a substantial gain
The good news is that you can add a dormer to an existing roof. The bad news is that it's not a do-it-yourself job. I say this assuming you have limited carpentry and roofing experience. The dormer requires you, or the person building it, to have a complete understanding of roof flashings of just about every type.
REVIEWS & TESTIMONIALS
Here’s what our clients have to say
"Came very quickly to assess the damage caused by the wind to the tiles on my roof. They were professional in their assessment and quote and went on to complete the job. I would use this company again and would recommend them to others. Thank you!”
HELEN (SA12)