Hampshire · England
Window & door mastic in Chilbolton, Hampshire
Our applicators work in Chilbolton on mastic around window and door frames, sills and patio doors. Old sealant removed completely, joints prepared properly.
- Cracked internal joints between frame and plaster
- Mastic that has split away from the wall
- Untidy mastic left by window fitters
Why act early in Chilbolton
Getting a straight, even bead on an outside frame takes practice, especially upstairs. We cut out properly, back deep gaps and tool every joint neatly, in a sealant suited to the wall. Around Chilbolton, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.
No two jobs are quite the same, so we quote each one individually. Size, access and the product the joint needs all make a difference.
What you get with us
- Rated 4.9 stars on Google
- White, clear, grey or another colour, product permitting
- A 12-month guarantee on all work
- ARBOMaster approved applicator
Read what affects the cost and what customers say.
Window mastic in Chilbolton, done properly
Some gaps around frames are far deeper than they look. Packing it solid with sealant gives a joint that can’t flex, so we fit backing rod to set the right depth. That way the new bead bonds to the frame and the wall only. If you’re dealing with cracked sealant at the sill ends and white mastic on grey or black frames, we can put it right.
In a village or hamlet like Chilbolton, older cottages and farmhouses often have timber windows set in stone or brick. Older buildings like these do not always suit modern silicone, so the sealant has to be chosen to suit the building.
A one-year guarantee comes with the work, just as it does everywhere we cover.
- Where
- Chilbolton (SO20)
- Wider area
- Hampshire
- Cover
- 12 months on all our work
- Quotes
- A clear quote up front
- Call
- 0345 464 0079
- Page updated
- 26 October 2026

Common questions in Chilbolton
Is Chilbolton within the area you cover?
Yes. Chilbolton is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Can you help a landlord with a rental near Andover station?
Yes, we work for letting agents and landlords. Just call 0345 464 0079 or drop us an email and tell us about the property, and we will give you a clear price.
What should I tell you?
Where the job is, what the problem is and roughly how big it is. Photos by email help too.
What does window mastic cost?
Every job is different, so each one gets its own quote. To get one, call 0345 464 0079 or send us an email with a short description of the job.
Will it make a mess?
We keep the work tidy. Nearby surfaces are protected, and the area is left clean when we finish.
Can resealing stop a draught around my window?
In many cases. The gap between frame and wall is a common source of draughts, and resealing inside and out closes it.
What sealant do you use?
It depends on the joint: anti-fungal sanitary silicone in wet areas, and other sealants where joints move or face the weather. Brands we use include Arbo and Everbuild.
Can you do upstairs windows?
Yes, in most cases. We plan safe access before the job.
How we quote for window mastic
Call for a quick quote. What matters most is:
- How easy the joints are to reach
- The number of rooms or windows
- Any mould that needs treating
- The number and length of the joints
A failed joint rarely gets cheaper to fix by waiting, because water and mould keep working on it. If you are unsure, phone 0345 464 0079 or drop us an email for an honest opinion and a quote.
Helping us quote
There’s no need for technical detail. Just tell us:
- A few photos by email, if you can
- Roughly how big the job is
- If it’s domestic, commercial or a hotel
- What the problem is, such as mould, gaps, leaks or cracking
There’s no standard price list, as no two jobs are quite the same. Instead, your job gets its own clear quote. To get started, call 0345 464 0079 or drop us an email.
What the job involves on each surface
Aluminium frames
Large aluminium doors have long joints down each side and across the head, and the threshold joint takes a lot of water. Each is cleaned, backed where deep and resealed.
Timber windows & doors
On period timber windows, traditional sand mastic is sometimes the better choice. We can talk through the options.
What we do, step by step
There isn’t much for you to do on the day. Show us the job and we will take it from there. The job generally takes a morning for a couple of windows and a door. For a village or hamlet like Chilbolton, the journey is planned in advance: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.
- Each frame is looked over and we agree which ones need resealing.
- The old mastic is cut out and scraped back to clean surfaces.
- Deep gaps get closed-cell backing rod to set the depth.
- A flexible exterior sealant is applied in a colour to suit the frame.
- We tool each bead neatly and check every joint is closed.
Before we arrive
- Clear items away from the joints we are working on
- Try not to wet indoor joints just before the visit
- Tell us about access, such as stairs, a lift or high-level joints
Get a quote
For a quick quote, get us on the phone, or send an email if you’d rather. Tell us about the joints that need doing and we will talk you through the work and give you a clear price.
Read more
What sealant work cannot fix
It helps to know what we can’t do:
- A frame that has rotted at the joint
- Faulty window hardware
- Misting between the panes of a double-glazed unit (that needs a new unit)
Not sure which it is? You can ring 0345 464 0079 or drop us an email and we will tell you honestly before you book.
What we seal
- uPVC windows
- Window sills
- Timber windows & doors
- Aluminium frames
- Composite doors
- Patio & French doors
Nearby places to Chilbolton
What else we do in Chilbolton
Can I do it myself?
If you’ve already had a go yourself, that is fine. We cut it out and start again, so tell us about it when you ask for a quote.
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, then guaranteed for a year.
Work for landlords, hotels and businesses
We regularly work with letting and managing agents. Tell us the address, the job and how access works and we will quote.
Landlords and agents in Chilbolton can book us as well as homeowners. Resealing between tenancies keeps a property looking cared for.
Frames and glazing around Chilbolton
Rainfall in the South East is lower than in much of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
Letting a property close to Andover station? Then renewing tired window mastic between tenants heads off draught and damp complaints. For an older house near a landmark such as Church of St Mary the Less, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint. If you look after a building such as Wherwell Primary School, its window and door frames need their mastic kept sound, just like a home’s.
Chilbolton is about 4 miles south-east of Andover, in Hampshire. We provide window mastic to homes and businesses in Chilbolton and nearby, as part of our work across Hampshire. 683 places in Hampshire are on our list, large and small. Our Southampton page covers work nearby.
Postcode districts we cover here for window mastic: SO20. If you need window mastic at a property on Station Road, Test Rise and Drove Hill or anywhere close by, our applicators can take on the job. Neighbouring places we cover for window mastic include Cottonworth (1 mile west), Wherwell (1 mile north), Fullerton (1 mile west), Leckford (2 miles south-west) and Wherwell Wood (2 miles north-west). Larger places within reach include Winchester (8 miles south-east), Eastleigh (13 miles south), Andover (4 miles north-west), Chandler's Ford (12 miles south), Romsey (11 miles south) and Hyde (8 miles south-east).
Around Chilbolton
Typical jobs here are in homes near Longstock Park and Abbots Mitre pub, among other places. The nearest railway station is Andover station, about 4.7 miles north-west of the centre. Well-known places in the area include Andover War Memorial Hospital (5 miles north-west). The countryside around Chilbolton includes Mill Lake.
