Velux & Skylights Marlborough

Velux & Skylights Specialists in Marlborough

Marlborough is 12 miles from our Swindon base. The Kennet valley humidity trap at 140m creates specific conditions that affect velux & skylights work here. The Barton Park estates represent the bulk of our post-war work, while the listed High Street buildings require specialist knowledge of traditional materials and techniques. We carry the right materials for both property types and switch between modern and period specifications daily.

Why Marlborough Matters for Velux & Skylights

At Kennet valley humidity trap at 140m, Marlborough faces specific challenges that generic specifications do not account for. Wind loading, humidity levels, temperature ranges and frost frequency all differ from sheltered Swindon. Every velux & skylights specification we write for Marlborough accounts for these local conditions. The Barton Park estates see the bulk of our standard work, while the listed High Street buildings need conservation-grade materials and techniques.

Our Process in Marlborough

We survey from the roof, not just the ground. We photograph everything and explain what we find in plain English. We quote in writing with itemised costs and no hidden extras. We use the correct materials for the property type and local conditions. We do not subcontract. Every job carries our written 10-year workmanship guarantee. Call 0179 329 7084 for a free survey.

Materials and Specification

We use materials appropriate to Marlborough's conditions and property types. For the Barton Park estates, we use modern high-performance materials with enhanced specifications where the local exposure demands it. For the listed High Street buildings, we use period-appropriate materials including lime mortar, reclaimed tiles and traditional lead dressing. All fixings are stainless steel or copper. We never compromise on specification because a cheap job that fails reflects on our reputation.

Velux Flashing — Why It Matters More Than the Window

A Velux window is a precision-engineered, factory-sealed unit that rarely fails in its first 20 years. The flashing kit around it is a field-assembled junction between the window frame and the surrounding tiles — and this is where 90% of Velux leaks originate. Every tile profile requires a different flashing kit configuration. Using the wrong kit, or fitting the right kit incorrectly, creates gaps that wind-driven rain exploits immediately. We stock genuine Velux flashing kits for every common Swindon tile profile and dress them according to Velux installation specifications.

Condensation vs Leaking — Telling the Difference

Water appearing around a Velux window is not always a leak. In cold weather, warm moist air from the room below condenses on the cold glass and frame, creating drips that look identical to a roof leak. The test is timing: if the water appears only in cold weather when heating is on, it is likely condensation. If it appears during or after rain regardless of temperature, it is a leak. Condensation is solved by improving ventilation — opening the window briefly, fitting trickle vents, or improving room extraction. A leak requires flashing inspection and probable replacement.

Kennet Valley — Sheltered but Humid

Marlborough sits in the Kennet valley at about 140m elevation, sheltered between the Marlborough Downs to the north and Savernake Forest to the south-east. The valley position provides excellent wind protection — chimney stacks and ridge tiles survive much longer here than in hilltop locations. But the sheltering hills reduce airflow that would otherwise dry roof surfaces, creating a humidity trap similar to Cricklade. Morning mist is common from October to April. North-facing slopes develop heavy moss growth. Lime mortar pointing degrades faster from the persistent dampness. We apply the same enhanced ventilation and moss management protocols in Marlborough as in river-level Cricklade.

Planning and Building Regulations for Velux Windows

Most Velux installations in existing roofs are permitted development and do not need planning permission. However, if the window projects more than 150mm above the plane of the roof slope, if the property is in a conservation area, or if the window is on a principal elevation facing a highway, you may need planning consent from Swindon Borough Council. Building Regulations approval is required for all new Velux installations under Part L for energy efficiency and Part B for fire safety in loft conversions. We handle all Building Regulations notifications and arrange inspection as part of our service. We also advise on planning requirements during the free survey so there are no surprises.

Choosing the Right Velux Window

Velux offers several window types, each suited to different roof pitches and room uses. Centre-pivot windows rotate around a central axis and suit pitches from 15 to 90 degrees — the most versatile and most common type. Top-hung windows hinge at the top and open outward, giving clear views and unobstructed head height — ideal for rooms where you want to look out at eye level. Balcony windows combine an upper centre-pivot section with a lower section that folds out to create a small balcony — a premium option for loft conversions. Conservation windows have a flush external profile that meets planning requirements in conservation areas and on listed buildings. We advise on the right type for your room use, roof pitch and planning context during the free survey, and bring the Velux product guide so you can see the options and sizes available.