Hampshire · England
Window & door mastic in Penton Mewsey, Hampshire
Window mastic for Penton Mewsey, by sealant specialists with 20+ years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Hard, cracked sealant around windows
- Black, perished sealant on frames
- Gaps between the frame and the inside reveal
Window mastic in Penton Mewsey, done properly
If you can feel air around a shut window, the gap is often at the frame. A new joint stops the air getting through. If the draught is through the window seals instead, we’ll tell you. We work on patio & French doors, uPVC windows and window sills, and people most often call us about sealant in the wrong colour for the frame and mastic that has split away from the wall.
Somewhere as small as Penton Mewsey, older homes often have timber frames set in stone or brickwork. Not every older frame suits a modern silicone bead, so the sealant has to be chosen to suit the building.
Whatever the size of the job, it’s backed by our one-year guarantee.

- Location
- Penton Mewsey (SP11)
- Wider area
- Hampshire
- Cover
- A year, on every job
- Quote
- A clear quote up front
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
What we do, step by step
When we get to you, we compare the joints with what we discussed. If we find something unexpected, we talk it through with you first. After that, the work takes a few hours for a handful of frames, longer for a whole house. In a small place like Penton Mewsey, access is generally the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- We check how each frame can be reached safely.
- Old, cracked mastic is removed completely.
- The surfaces are cleaned and left dry, and primed where the sealant calls for it.
- Deep voids are backed, then the sealant is gunned in.
- We tool the joint so water runs off, then clear up.
Preparing for the visit
- For business premises, tell us about site rules or sign-in
- Where the joints are inside, avoid wetting them before we arrive
- Clear the area around the work
Ask for a quote
It all starts with a short chat. Describe the problem, the location and the size of the job, and we will explain how we’d tackle it. When it suits you, call 0345 464 0079 or email us.
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Places near Penton Mewsey
Also in Penton Mewsey
What window mastic looks like in Penton Mewsey
Compared with the north and west, the South East gets less rain, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
Managing a site like Harrow Way Community School? Then its window and door frames need their mastic kept sound, just like a home’s. Homes close to Holy Trinity Church include some older properties, and replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Penton Mewsey is about 2 miles north-west of Andover, in Hampshire. Whether you’re in the middle of Penton Mewsey or further out, we cover window mastic for every kind of property, from flats and houses to offices and hotels. Penton Mewsey is one of 683 places in Hampshire where we work. We also work in Southampton, about 22 miles from Penton Mewsey.
Every address in SP11 is within our area for window mastic, from the main roads to the quietest streets. That includes homes and businesses on Chalkcroft Lane, Trinity Rise and Newbury Hill. Nearby, we also carry out window mastic in Penton Grafton (1 mile south-west), Penton Corner (1 mile south), Foxcotte (1 mile east), Charlton (1 mile east) and Clanville (1 mile north-west). Larger places within reach include Winchester (15 miles south-east), Hyde (14 miles south-east), Tidworth (6 miles west), Weeke (14 miles south-east), Stanmore (15 miles south-east) and Ludgershall (4 miles north-west).
Local landmarks in Penton Mewsey
Locally, jobs take us to homes and businesses close to White Hart Public House and the streets around them. For rail, the closest station is Andover station, roughly 1.9 miles south-east of the centre. Other landmarks nearby include Andover Museum (2.5 miles south-east) and Ludgershall Castle (4.7 miles north-west). Open spaces near Penton Mewsey include Anton Lakes and Mill Lake.
Common questions in Penton Mewsey
Is Penton Mewsey within the area you cover?
Yes, we do. We work across London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
Can you help a landlord with a rental near Andover station?
Yes, we work for letting agents and landlords. You can call 0345 464 0079 or drop us an email with the address and a few details, and we’ll give you a fixed price before work begins.
How many windows can you do in a day?
The work takes a few hours for a few frames, or a day or more for a whole house. Access and how stubborn the old mastic is affect the time most.
Can you get sealant to suit coloured frames?
Yes, in most cases. Tell us the frame colour when you get in touch and we’ll match it as closely as we can.
Are you ARBOMaster approved?
Yes. We hold ARBOMaster approved applicator status, and we’re fully insured.
What should I tell you?
A short description and the location. We will ask anything else we need to know.
Is the work guaranteed?
Yes. Every job comes with our one-year guarantee, and we are fully insured.
How do I get a quote for window mastic in Penton Mewsey?
The cost depends on the size of the job, access and how much old sealant has to come out. Ask us for a quote and we’ll talk you through it.
When it is not the sealant
A few problems are outside what sealant work can do:
- Faulty window hardware
- Soft or decayed wood in the frame
- Penetrating damp from a failed cavity tray or render
If in doubt, phone 0345 464 0079 or drop us an email and we will say what we think before you book.
Where we work in Penton Mewsey
- Timber windows & doors
- Window sills
- Composite doors
- Patio & French doors
- uPVC windows
- Aluminium frames
Signs you need window mastic in Penton Mewsey
Sun, frost and rain wear sealant out. Sunlight dries the surface out, and over the years it loses its give, cracks and comes away.
Any of these means the joints need attention:
- Gaps between the frame and the inside reveal
- Leaking joints at the ends of sills
- A bead that doesn’t match the frame
- Untidy mastic left by window fitters
Letting a property close to Andover station? Then renewing tired window mastic between tenants heads off draught and damp complaints.
Questions to ask before booking
- What product goes in the joint
- How hidden problems are handled
- How the joint is cleaned and prepared
- How the colour is chosen
Landlords, agents and businesses in Penton Mewsey
In hotels, rooms out of use cost money, so the work can be planned room by room around your bookings where we can. We’ve worked in hotels as well as homes and businesses.
If you manage several properties in or around Penton Mewsey, jobs at different addresses can be quoted together. Send us the addresses and the work at each, and pictures by email help.
How the job changes by surface
Window sills
The end joints of a sill tend to fail before the rest. We reseal them so rain cannot run into the wall.
Patio & French doors
Patio and French doors have the longest joints on most houses. Most leaks start at the bottom corners, so they get particular care.
Looking after it afterwards
After the cure time, these simple habits help:
- Make sure the drainage slots aren’t blocked
- Use gentle cleaners on frames and sealant
- Ventilate rooms so frames do not stay wet inside
- Don’t aim a pressure washer at the joints
On timber frames, keep the paintwork in good order, because bare, wet timber moves more and pulls at the joint. Paint up to the joint, not over the silicone.
Wet, windy weather is when failed mastic shows itself, but resealing works best in dry conditions. Dealing with it when you first notice a crack avoids chasing leaks through the wet months.
Should I try it myself first?
What a professional job adds is preparation and the right product. Joints are cleaned back to sound surfaces and dried, and the sealant is matched to the joint and its conditions, and the work is guaranteed for a year.
Too much sealant is as bad as too little. A thick, smeared bead looks untidy and doesn’t move well, and the joint depth matters as much as the finish.
