Swift Roofing
Roof ventilation, fitted and repaired
Damp felt, black mould and wet insulation in the loft are far more often an airflow problem than a leak. Book a free inspection worth £199 and we will tell you which it is before you spend a penny.
“Had a leaky roof that had been problematic for a while. Luke and his team have future proofed...” Verified Checkatrade review, PE30, King's Lynn
No obligation. No hard sell. We price from a proper inspection, never a guess over the phone.
Free roof inspection worth £199
Photographs of what we find, a written fixed price, and no pressure to book.
Roof ventilation is what keeps a loft dry. Warm, moist air rises out of the house into the roof space, and if it has no way out it condenses on the cold underside of the felt, exactly where a leak would show. Left alone, that moisture soaks the insulation, grows black mould across the felt and rots the timbers. We fit and repair roof ventilation across Wisbech, Norwich and East Anglia, and we only fit the ventilation your roof actually needs.
Condensation or a leak?
Getting this right first saves you money, because the fix is completely different. Condensation spreads across a wide area of the felt, is worse in cold weather, and shows as fine droplets or a damp sheen. A leak traces back to one point, often a chimney, valley or roof window. On the free inspection we check both and show you photographs of what we find. Our condensation in the loft guide covers the signs in more detail.
What we fit
- Soffit vents, so fresh air is drawn in at the eaves
- Over fascia vents, where the soffit cannot take a vent
- Tile vents, set into the roof slope to let moist air out
- Ridge vents, so air flows up and out along the top of the roof
A roof needs air in at the eaves and out at the top. Vents at one end only do half the job, so we balance intake and outlet rather than adding vents at random.
What we repair
Most ventilation problems we find are not missing vents. They are vents that have stopped working:
- Loft insulation pushed right up against the soffit, sealing off the eaves. We pull it back so air can flow in at the eaves again
- Tile vents displaced or broken by wind, refitted or replaced
- Bathroom or kitchen extractor fans ducted into the loft instead of outside, one of the most common causes we find
- Spray foam sprayed onto the rafters, which stops the whole roof breathing. See our spray foam removal page
Done with other roof work
Ventilation is cheapest to put right when the scaffold is already up. On a fascia and soffit replacement we make sure soffit ventilation is correct as standard, and on a roof replacement we fit breathable membrane and make sure the roof is ventilated properly from day one.
What you get
A free inspection worth £199, photographs of what we find, and a fixed written price. Every job carries our 10 year written workmanship guarantee, £1m public liability cover, and Luke answers the phone himself, 8am to 6pm, seven days.
Areas we cover
Roof ventilation across Wisbech, Norwich, King's Lynn, Peterborough and the rest of Cambridgeshire, Norfolk, west Suffolk and south Lincolnshire.
Four steps, no surprises
You call or send the form
Luke answers, or calls you straight back. Tell him what is happening and roughly where.
We come and look
A proper inspection, not a guess over the phone. Free, and worth £199.
You get photographs and a fixed price
You see what we saw. The price is written down and it does not move.
We do the work and clear up
Guaranteed in writing for 10 years. Scaffold down, site swept, no mess left behind.
What customers actually said
132 verified reviews across Google and Checkatrade. These are real, and you can read every one of them on the platforms themselves.
Trustable quality roofers, a great team
Had a leaky roof that had been problematic for a while. Luke and his team have future proofed, so we should no longer have any problems with it. A lovely, helpful team and when we need work done elsewhere, won't hesitate to give them a call.
Nothing was too much trouble
Had quotes for our very tricky old Victorian cottage. Although all quotes were similar it was Luke's attitude and personality that got the job and we couldn't be happier, nothing was too much trouble and his workers are top drawer.
Worked tirelessly through the heat wave
Luke and his guys are amazing. Very professional, courteous and did a wonderful job of our roof. Left the site clean and tidy, worked tirelessly through the heat wave, and we are very happy with the price. 10 out of 10 for Swift.
Straight answers before you book
Why is there condensation in my loft?
Almost always because warm, moist air from the house is getting into the loft and has nowhere to go. Blocked soffits, missing ridge or tile vents and extractor fans venting into the loft are the causes we find again and again. Our condensation in the loft guide explains each one.
Is black mould on the felt a leak?
Rarely. Black mould across the underside of the felt is the clearest sign of a long-running condensation problem that has built up over more than one season. We check for a leak at the same time so you know for certain.
Does more loft insulation cause condensation?
Not on its own. Insulation packed right up to the soffit blocks the vents at the eaves, and that is what causes the problem. Fitted with a clear air gap at the eaves, it should not.
Can you add vents without replacing the roof?
Yes. Tile vents, soffit vents and over fascia vents can all be fitted to an existing roof. We price exactly what your roof needs after the free inspection.
Do you cover my area?
Yes, across Cambridgeshire, Norfolk, west Suffolk and south Lincolnshire, with bases in Wisbech and Norwich. Call 01945 661573.
Stop condensation rotting your roof
Free inspection worth £199, photographs of what we find and a fixed written price, with a 10 year written guarantee. Call 01945 661573.
No obligation. No hard sell. We price from a proper inspection, never a guess over the phone.