Reading · England
Whitley Wood Window Mastic
Window mastic for Whitley Wood, by sealant specialists with 20+ years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Cracked or shrunken mastic around the frame
- Cracked sealant at the sill ends
- Water coming in at the bottom corners of a door
What the job involves on each surface
uPVC windows
Plastic frames move a lot between a hot afternoon and a cold night, so the joint needs a low-modulus sealant that stays flexible. White is the usual colour, with brown, anthracite grey and black for coloured frames.
Aluminium frames
Bi-fold and sliding aluminium doors have long frame joints, and the threshold joint takes a lot of water. Each is cleaned, backed where deep and resealed.
About our window mastic in Whitley Wood
Most frames have an outside joint and an inside one. Outside, the mastic keeps rain out; inside, the joint between frame and plaster stops draughts and tidies the reveal. We seal one or both, depending on what’s needed. If you have draughts coming in around windows and doors and cracked or shrunken mastic around the frame, we can put it right.
Houses in smaller places like Whitley Wood can stand more in the open than those in a built-up town. That is hard on the mastic around frames and sills.
Our work is backed for twelve months.
- Where
- Whitley Wood (RG2, RG7, RG6)
- Region
- Reading
- Guarantee
- 12 months on all our work
- Quote
- A clear quote up front
- Call
- 0345 464 0079
- Updated
- 26 October 2026
Work for landlords, hotels and businesses
From a single let to a portfolio, you get the same standard of work: old sealant fully removed, joints prepared properly and a 12-month guarantee.
Mouldy or split sealant often shows up at the end of a tenancy, and it’s quick to put right between tenancies. We can quote for more than one property at once.
Why act early in Whitley Wood
A cracked joint around a frame lets rain into the wall. Left long enough, it can stain inside walls, spoil plaster and rot wooden frames. Resealing now is a small job by comparison. Around Whitley Wood, water from a failed joint in an older home can soak into timber and plaster, and that’s a much bigger job than renewing the sealant.
The cost depends on how much there is to do, how much old material has to come out and how easy the joints are to reach. We give a clear quote before work begins, so you know where you stand.
Why choose Mr Mastic in Whitley Wood
- Fully insured
- Sealant colour chosen to suit
- Old sealant always removed completely
- 4.9 on Google from 180+ five-star reviews
Nearby places to Whitley Wood
More services for Whitley Wood
What window mastic looks like in Whitley Wood
The South East is one of the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day. With historic houses such as Stratfield Saye House (about 4.9 miles south) nearby, there’s older building stock in the area around Whitley Wood as well as newer homes. Where a home is older, older timber frames in brick or stone need a different approach from a modern uPVC window.
Schools such as Geoffrey Field Infant School are buildings too, and the mastic around its windows and doors needs looking after like any other building’s. Homes close to St Paul's Church include some older properties, and frames set in older brick or stone need a sealant that suits the wall as well as the frame.
Whitley Wood is about 2 miles south-west of Earley, in Reading. Every kind of property in Whitley Wood can book us for window mastic. The work is guaranteed for a year. Our Reading coverage runs to 34 places, Whitley Wood among them.
Every address in RG2, RG7 and RG6 is within our area for window mastic, from the main roads to the quietest streets. Streets in the area include Tidman Road, Church Lane and Spencer Road. Main roads around Whitley Wood include the M4. If you’re just outside Whitley Wood, we cover Whitley (1 mile north), Great Lea Common (1 mile south-west), Shinfield (1 mile south-east), Three Mile Cross (1 mile south-west) and Ryeish Green (1 mile south). Larger places within reach include Caversham (4 miles north), Norcot (4 miles north-west), West Reading (3 miles north-west), Tilehurst Within (4 miles north-west), Arborfield Garrison (4 miles south-east) and Caversham Heights (4 miles north). Being one of Reading’s larger places, Whitley Wood has homes, rented property and businesses of every kind.
What’s near Whitley Wood
Around Whitley Wood, our work takes us to homes and buildings near Pearman's Copse, John Madejski Academy and University of Reading library. Other local landmarks include Crosfields School (0.7 miles north-east) and The Six Bells pub (less than half a mile south-east). Whitley Wood’s nearest station is Reading Green Park station, about 1.9 miles north-west. Other landmarks nearby include Royal Berkshire Hospital (2.4 miles north) and The Oracle (2.6 miles north). The countryside around Whitley Wood includes Sonning Hill and Longwater.
What happens on the day
At the end, we look at the finished work together. The work normally takes most of a day for a typical house, less for a few frames, depending on the amount of work. A visit to Whitley Wood is planned like any other: the time, the access and where to park are agreed in advance. Outdoor jobs depend on a dry day, since sealant needs a dry surface.
- We check how each frame can be reached safely.
- All the failed sealant is cut away, along with any loose debris.
- Frame and wall are cleaned and must be dry before sealing.
- Deep voids are backed, then the sealant is gunned in.
- We tool the joint so water runs off, then clear up.
Getting ready for the visit
- Move anything stored near the joints
- Let us know about stairs, lifts or work at height
- Keep children and pets away from the work area
Get a quote
There’s no standard price list, because every job is different. Instead, your job gets its own clear quote. To arrange one, phone 0345 464 0079 or send us an email.
Read more
What we’re called out for in Whitley Wood
Frames are never completely still. A plastic or aluminium frame lengthens in sunshine and shortens as it cools, while the masonry beside it stays put. If the sealant can’t stretch, it splits.
Any of these means the joints need attention:
- White mastic on grey or black frames
- Whistling draughts around closed windows
- Mastic that has split away from the wall
- Black, perished sealant on frames
Rented homes near Reading Green Park station change hands often, and cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets.
Questions to ask before booking
- Whether the sealant suits the joint
- Are they insured?
- The length of the guarantee
- What happens if the job turns out different
Can I do it myself?
Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
If you’ve already had a go yourself, that’s fine. We remove it and do the joint properly, so just mention it when you contact us.
Keeping the joints in good condition
Aftercare is simple, and it makes a real difference:
- Keep solvents and bleach off the sealant
- Keep paint off silicone joints
- Look round the frames every year or so
- Avoid blasting the frames with a pressure washer
Keep the new mastic undisturbed while it cures, for as long as we advise. Keep jet washers away from the frames.
Water gets in quietly when mastic fails. You might not see it until plaster blows or a damp patch appears inside. Catching it early keeps the fix to a reseal.
Common questions in Whitley Wood
Is Whitley Wood in your area for window mastic?
Yes. We work across London and the South East, and Whitley Wood is part of that. Just phone 0345 464 0079 or drop us an email with a few details of the job, and we will give you a clear price.
Do you cover smaller places like Whitley Wood?
Yes, Whitley Wood is covered. Our work covers London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
Do you work for landlords and businesses?
Yes. We work for homeowners, landlords, letting agents, businesses and hotels in Whitley Wood.
What does window mastic cost?
Size, access and the old material all affect the cost. Call for a quick quote and we will talk you through it.
Do you hold any approvals?
Yes. We are ARBOMaster approved, the scheme for applicators of Arbo sealants.
Is the work guaranteed?
Yes. All our work carries a 12-month guarantee, and we’re fully insured.
Is it OK to seal over old sealant?
No. Fresh sealant doesn’t stick to old sealant, and anything trapped underneath, including mould and water, stays there. We remove it all first.
Are you fully insured?
Yes. Full insurance covers our work.