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Service · Tecta Conversions

Loft Conversions & Extensions in Orpington & Bromley

Turn unused loft space into a bedroom, office or bathroom. Through our Tecta Conversions division, we design and build dormer, hip-to-gable and Velux conversions across Orpington and Bromley. Our own roofers handle the roofing in-house too. Since the same team handles both the roofing and the conversion, there's no gap between trades for water to get in during the build.

More space, without moving house

Moving house is expensive and disruptive. Many Orpington and Bromley homeowners want an extra bedroom, home office or en-suite.

Often, the simplest way to get one is the space already sitting above their heads — the loft. Planning rules for loft conversions are generally more relaxed than for ground-floor extensions. Since that's the case, a loft is often one of the simplest ways to add space.

We're roofers first, so we build every Tecta Conversions loft with the roof at its heart. Experienced roofers handle the dormer cheeks, flashings, insulation and weatherproofing. As a result, the finished conversion is warm, dry and properly detailed. Every loft is different, but the same core principle applies: get the roof structure and weatherproofing right first, then build the room around it.

Every project starts with a free survey to confirm what your roof shape allows. A Velux, dormer, hip-to-gable or mansard design each suits a different property. We also handle the Building Regulations application as part of the job, so you have nothing to chase up separately. Our loft conversion types guide compares Velux, dormer and hip-to-gable designs.

Dormer and hip-to-gable conversions typically need the most roofing work. That's because they involve altering the existing roof shape, rather than just fitting rooflights into it. Having the roofing and conversion under one roof — quite literally — means fewer handover points. Nothing slips through the gap between trades.

Great for

  • Extra bedrooms & guest rooms
  • Home offices & studies
  • En-suites & bathrooms
  • Playrooms & hobby spaces
  • Adding value before selling
  • Growing families staying put
Design & build
From first survey to finished room, managed as one project.
Adds value
One of the most cost-effective ways to add space and value.
Roofing in-house
The roof work done by our own experienced roofers — not subbed out.

Types of loft conversion

Velux / rooflight

Keeps the existing roofline — rooflights added for a bright, cost-effective conversion.

Dormer

A box dormer adds full-height headroom and floor space — the most popular choice.

Hip-to-gable

Extends a sloping hip into a vertical gable, gaining significant internal space.

Mansard

A near-vertical rear roof for maximum space, often used on period and terraced homes.

Loft conversion FAQs

How much does a loft conversion cost, and will it add value? +
Cost depends on the type of conversion, the size of the space and the finish. A well-designed loft conversion is one of the most cost-effective ways to add living space. It also adds value to a home in the Orpington and Bromley area. We provide a detailed quote after an initial survey.
Do I need planning permission for a loft conversion? +
Many loft conversions fall under permitted development. However, dormers, larger volumes and conservation-area properties can need planning permission. You always need Building Regulations approval too. We guide you through what's needed for your property.
What types of loft conversion are available? +
The main types are Velux (rooflight) conversions, dormer conversions, hip-to-gable, and mansard. The right choice depends on your roof shape, the headroom available and your budget. We'll advise on the best option.
Who does the roofing on the conversion? +
We do. Tecta Roofing carries out the roofing in-house. Experienced roofers handle the new roof, dormer cheeks, flashings and weatherproofing themselves, not a subcontractor.
How long does a loft conversion take? +
Most loft conversions take in the region of 6–10 weeks depending on type and complexity. We agree a programme with you before work begins.

Local roofing areas we cover

We carry out this service across Orpington, Bromley and the surrounding Kent and South East London towns. Our team lives and works locally, so we can usually get a surveyor out to you fast. Every survey looks at the same details, but roof pitch and headroom vary from house to house. Since every roof is different, no two lofts convert quite the same way.

Thinking about a loft conversion?

Book an initial survey and quote with Tecta Conversions — roofing and conversion under one roof.
Get a Free Quote

Written by Tecta Roofing · page last updated