Guide prices
Small conservation unit
Low-profile unit with glazing bar, slate or tile flashing
Medium unit
Larger opening, lead or matching flashings
Large or bespoke
Larger or made-to-order units for listed or sensitive roofs
Guide ranges for supply & fit. Your price is fixed in a written quote after we have seen photos or surveyed. Scaffold, access towers or a crane are priced separately if the job needs them, and building control fees, where a job needs them, are shown as their own line.
Covering OX4 and neighbouring districts
If you also own a property or a business unit in Oxford, Abingdon or Didcot, that is no problem. We can survey and quote both, and where it suits, line the fitting days up together. Every address is reached by fitters travelling to it from their current jobs, and OX4, OX3 and OX1 sit comfortably within that pattern.
Already bought your unit?
A damaged delivery is a frequent snag on fit-only work. Before the day, unpack a conservation rooflight, photograph it, and tell the seller about any cracks or scuffs, because claims are much easier made early. We will also ask for the model or a link, so we can read the maker's instructions and check the opening size and the flashing kit it expects. If everything lines up, we fit it. If not, we explain what needs changing first.
Included in the work
- Position checked against any consent drawings or council conditions
- Flashings in lead or a matching kit, dressed to the covering
- Rooflight set low so it sits close to the line of the roof
- Reusing the original covering — We plan to reuse the existing slates or tiles wherever we can.
- Conservation area rules by nation — We check the permitted development position for your nation before the rooflight is ordered.
What happens on the day
Where a job takes one day, the split is usually structural work first and finishing second. Early on, the fitters cut or prepare the opening, trim where needed and prepare the upstand or flashing. Then a conservation rooflight is lifted in, fixed and made weathertight so the roof is sound before anyone moves inside. Plasterboard, trim and filler for the reveal come after. Each evening the work area is swept, and at the end the glass is cleaned and the team talks you through what was done.
Regulations for Cowley properties
Replacing a rooflight in an English home is a controlled fitting: it has to be self-certified by a scheme-registered installer or notified to building control. We are not registered with a competent person scheme, so replacements we fit are notified with a building notice, and the new unit has to meet current energy limits. Adding a new one usually means a building regulations application, because joists or rafters are trimmed. On the planning side, most house rooflights are permitted development if they project 0.15 m or less; on a side slope the glass must be obscured and fixed unless the opening part is over 1.7 m above the floor.
What to send for a quick quote
Keep it simple. Two or three photos, outside and inside. Approximate sizes. What the roof is made of. Anything awkward about getting up there, such as a conservatory below, a narrow side path or no parking. If you bought the rooflight online, the link or model name. Then your postcode in or around OX4. That is enough for a first price.
Common questions in Cowley
What if my roof opening is the wrong size for the conservation rooflight?
We find out before the fitting day, not on it. If the opening is slightly out, it can usually be adjusted by trimming or by packing out the upstand. If it is a long way off, the choice is between altering the opening and changing the unit. Bear in mind that rooflights are often sold by builder's opening size rather than external size, so check which one your measurement refers to.
How long does fitting take?
Fitting a conservation rooflight into an existing, correctly sized opening is often a day's work. New openings take longer, because joists or rafters need trimming, an upstand or flashing has to be built or fitted, and the inside needs finishing. Large units that need lifting gear, and days lost to rain, can stretch things further. Your written quote gives a realistic estimate for your roof.
Do you cover Cowley?
Yes. Fitters travel to addresses in Cowley and the surrounding districts, including OX4. We do not run an office there; the survey and the fitting happen at your property. A few island and remote postcodes are covered by arrangement; if yours is one, we confirm travel and dates before quoting.
Planning a conservation rooflight in Cowley? Tell us about the roof and we will come back with a clear price in writing.

