West Berkshire · England
Window Mastic in Great Lea Common
Mastic around window and door frames, sills and patio doors for homes and businesses in Great Lea Common and across West Berkshire. Fully insured, ARBOMaster approved and guaranteed for a year.
- Black, perished sealant on frames
- Rain getting in at the frame or under the sill
- Rushed sealant from a window installation
How we quote for window mastic
Your quote is based on your job. We take into account:
- The number of rooms or windows
- The size of the job
- Any working-time requirements on site
- How easy the joints are to reach
No two jobs are quite the same, so each one gets its own quote. The number of joints, how easy they are to reach and the sealant needed all play a part.
What we need to know
There’s no need for technical detail. Just tell us:
- Where the job is, and your postcode
- Any previous sealing or DIY work
- If it’s domestic, commercial or a hotel
- How many joints, rooms or windows are involved
Want a quote for window mastic? Please call 0345 464 0079 or drop us an email and tell us about the job. You’ll know what we plan to do, and what it will cost, before any work begins.
Window mastic in Great Lea Common
A cold draught around a closed window often comes from the frame edge. Resealing that joint can make a room feel noticeably less draughty. If the draught is through the window seals instead, we’ll tell you. If you have hard, cracked sealant around windows and black, perished sealant on frames, we can put it right, on timber windows & doors, uPVC windows and aluminium frames alike.
Outdoor sealant needs dry, clean surfaces, so work on frames around Great Lea Common is planned for dry weather. Let us know about access to all the frames, upstairs ones included.
Whatever the size of the job, it’s backed by our one-year guarantee in Great Lea Common and across West Berkshire.
- Where
- Great Lea Common (RG7)
- Region
- West Berkshire
- Cover
- A year, on every job
- Price
- A clear price before any work starts
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
What window mastic looks like in Great Lea Common
Compared with the north and west, the South East gets less rain, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day. Historic houses like Stratfield Saye House (about 4.3 miles south) are a reminder that the area around Great Lea Common has older buildings as well as new. Where a home is older, older frames set in brick or stone need a sealant that suits them, and sometimes that is traditional sand mastic.
Homes close to St Paul's Church include some older properties, and the windows may be timber, sash or later replacements, and each needs the right sealant against the wall. Letting a property close to Reading Green Park station? Then sound mastic around windows and doors keeps out the draughts and damp that tenants notice first.
Great Lea Common is about 3 miles south of Reading, in West Berkshire. Jobs in Great Lea Common get the same care as everywhere else we work: old sealant removed completely, careful preparation and a 12-month guarantee. Across West Berkshire, we cover 155 places, and Great Lea Common is one of them.
Every address in RG7 is within our area for window mastic, from the main roads to the quietest streets. We also cover the places around Great Lea Common: Three Mile Cross (1 mile south-east), Whitley Wood (1 mile north-east), Ryeish Green (1 mile south-east), Green Park (1 mile north-west) and Shinfield (1 mile east). Larger places within reach include Newbury (15 miles west), Thatcham (12 miles west), Burghfield Common (4 miles west), Speenhamland (15 miles west), Calcot (4 miles north-west) and Shaw (14 miles west).
Local landmarks in Great Lea Common
Around Great Lea Common, our work takes us to homes and buildings near Geoffrey Field Junior School, Ryeish Green School and Pearman's Copse, among other places. Great Lea Common’s nearest station is Reading Green Park station, roughly 1.5 miles north-west. Other landmarks nearby include Berkshire Medical Heritage Centre Museum (3 miles north) and Royal Berkshire Hospital (2.9 miles north). For a walk, there’s Fobney Island Wetland Reserve and Longwater.
Landlord and commercial work in Great Lea Common
Housing providers, facilities teams and property managers book us too. We can quote a run of properties together, and we’re fully insured for the work.
Mouldy or split sealant often shows up at the end of a tenancy, and it’s easy to sort out between tenants. We can quote for more than one property at once.
Nearby places to Great Lea Common
More services for Great Lea Common
Surface by surface
Composite doors
Composite doors are normally hung in an uPVC-type frame, so its perimeter joint is sealed much like a window. We match the colour to the frame.
Aluminium frames
Bi-fold and sliding aluminium doors have long frame joints, and the bottom joint sees the most water. Each is cleaned, backed where deep and resealed.
DIY versus a professional finish
What a professional job adds is preparation and the right product. Joints are cleaned back to sound surfaces and dried, and the sealant is chosen for how the joint moves and where it is.
If you’re set on DIY, put the effort into preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it doesn’t work out, we can still put it right.
Your questions about window mastic in Great Lea Common
Is Great Lea Common in your area for window mastic?
Yes. We work across London and the South East, and Great Lea Common is part of that. You can call 0345 464 0079 or send us an email and tell us what needs doing.
Can you help a landlord with a rental near Reading Green Park station?
Yes. We work for letting agents and landlords as well as homeowners, and several properties can be quoted together. Just ring 0345 464 0079 or drop us an email with the address and what needs doing, and we’ll give you a clear quote.
Can new window sealant be painted?
That depends on the product. Silicone is not paintable, but some hybrid sealants are. Mention any painting plans before any work starts.
Where do you work from?
Our base is in Crawley, West Sussex, and we cover South East England, London and all of Scotland.
Do you work on first-floor windows?
Yes, where they can be reached safely. Let us know about access when you ask for a quote and we’ll plan for it.
Will there be a smell?
There can be a smell while the sealant cures. Opening a window helps.
What do you put in the joint?
Products from Arbo and Everbuild, among others, picked for each joint. We explain the product when we quote.
Is it OK to seal over old sealant?
No, because it fails. The old sealant always comes out first.
Aftercare tips
Aftercare is simple:
- Avoid harsh chemicals near the mastic
- Do not paint over the silicone
- Avoid blasting the frames with a pressure washer
- Wipe condensation off the frames
Silicone cannot generally be painted, so mention any painting plans before any work starts. We can use a paintable sealant where that matters.
Look out for the warning signs: cracks in the mastic, gaps you can see light through, damp on the reveal or mould around the inside of the frame. Any of these is worth a call.
Honest limits
In fairness, there are a few things sealant will not fix:
- Broken hinges, locks or handles
- Damp coming through the wall itself rather than the frame joint
- Draughts through the window seals rather than the frame
If you are not sure, just call 0345 464 0079 or drop us an email and we’ll give you a straight answer.
Where we work in Great Lea Common
- Window sills
- Timber windows & doors
- Aluminium frames
- uPVC windows
- Composite doors
- Patio & French doors
What we do, step by step
On the day, we look over the joints with you first, so you know exactly what we are doing. We protect the surfaces around the joints before we start. Most jobs take a few hours for a handful of frames, longer for a whole house. Somewhere like Great Lea Common needs a little journey planning: tell us about narrow lanes, gates, long drives and where we can park. Everything for the job comes with us, so a second trip is avoided where possible.
- First we look at every frame and agree the list.
- Next the failed sealant is cut away and the joint cleaned.
- Deep gaps are filled with backing rod to set the depth.
- New exterior sealant goes on in a matching colour and is tooled smooth.
- Finally we tidy up and check each joint.
Before we arrive
- Mention any leaks or damp you’ve noticed
- Move anything stored near the joints
- Keep pets and children clear of the area while we work
How to get a quote
For a quote, phone 0345 464 0079 or email us with the location and a short description of the problem. You will have a clear quote before we start.