Hampshire · England
Window Mastic in Old Alresford
We cover Old Alresford for mastic around window and door frames, sills and patio doors. Old sealant removed completely, joints prepared properly.
- Leaking joints at the ends of sills
- Draughty joints inside around the window
- Rushed sealant from a window installation
Surface by surface
Aluminium frames
Aluminium needs a sealant that bonds to coated metal. Neutral-cure sealant is the safe choice.
Composite doors
If the door itself is draughty, the issue may be the door seals or hinges rather than the frame mastic. We will tell you if that’s what we find.
Window mastic in Old Alresford
Frames and walls don’t move together. Heat and cold make frames grow and shrink against brick or render that hardly moves. That’s why the joint needs a flexible, low-modulus sealant rather than something rigid. Common call-outs are for gaps between the frame and the inside reveal and sealant in the wrong colour for the frame, across patio & French doors, uPVC windows and composite doors.
Somewhere as small as Old Alresford, older homes often have timber frames set in stone or brickwork. Not every older frame suits a modern silicone bead, and sometimes a traditional sand mastic is the better choice.
All our work comes with our one-year guarantee.
- Location
- Old Alresford (SO24)
- Region
- Hampshire
- Guarantee
- One year on every job
- Quotes
- A clear quote up front
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
Questions from Old Alresford
Is Old Alresford within the area you cover?
Yes, we do. Our work covers London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.
What guarantee comes with window mastic in Old Alresford?
Every job comes with our one-year guarantee, wherever it is. We’re fully insured, and an ARBOMaster approved applicator.
What does window mastic cost?
There’s no set price, as it depends on the job: its size, the old material, access and the product needed. You will get a clear quote before work begins.
How long does it take to reseal the windows on a house?
Allow 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.
What information do you need?
The location, the problem and the rough size of the job. If you can, email a few pictures.
Can you work on commercial sites?
Yes, regularly. We can plan bigger jobs in stages to suit the site.
Can tenants book the work?
We can work for tenants, landlords or agents. Just make sure your landlord agrees.
Can I paint over the new sealant?
Not generally, if it’s silicone. Tell us your decorating plans and we’ll pick a sealant to suit.
How to look after the new joints
Once the sealant has cured, a few habits help it last:
- Keep solvents and bleach off the sealant
- Ventilate rooms so frames do not stay wet inside
- Clear any debris from frame drain holes
- Repaint timber before it’s bare
Have a look at the joints once a year, ideally after winter. Small splits are simple to catch before they leak.
Signs to watch for: split or missing mastic, gaps, damp patches inside or black mould on the reveal. If you notice one, it’s time to get the joint looked at.
What happens on the day
We keep the work tidy and contained to the area we’re working on. Expect the work to take a few hours for a few frames, or a day or more for a whole house, and we explain the cure time before we leave. Somewhere as small as Old Alresford, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- 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
- For business premises, tell us about site rules or sign-in
- Mention if the joints have been sealed before
- Clear the area around the work
Ask for a quote
Quotes start with a quick conversation. Tell us what’s wrong, where it is and how much there is, and we will explain how we’d tackle it. When it suits you, call 0345 464 0079 or email us.
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DIY sealant or a professional job?
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.
If you do try it yourself, take your time over the preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it fails, we can still redo it.
What affects the cost of window mastic
There’s no set price list, because no two jobs are the same. The quote depends on:
- Access and height
- The product the joint needs
- How many rooms, windows or areas are involved
- How much old sealant there is and how hard it is to remove
A few things move the cost up or down: how much old sealant there is and how stubborn it is, whether mould needs treating, and whether we need extra access for height. Your quote takes all of that into account.
Helping us quote
A few details help us give you an accurate quote. When you ask for a quote, tell us:
- Pictures of the joints, sent by email
- Whether it has been sealed before
- Where the job is, and your postcode
- Whether it’s a home or a business
Call for a quick quote, or send an email if you’d rather. Tell us about the joints that need doing and we’ll explain what’s involved and give you a clear price.
Window mastic in Old Alresford: local notes
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. Historic houses like Hinton Ampner House (about 4.1 miles south) are a reminder that the area around Old Alresford 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.
If you look after a building such as Perins School, the mastic around its windows and doors needs looking after like any other building’s. In the older streets around Church of St Mary, frames set in older brick or stone need a sealant that suits the wall as well as the frame.
Old Alresford is about 7 miles north-east of Winchester, in Hampshire. Jobs in Old Alresford get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. Old Alresford is one of 683 towns and villages in Hampshire we cover. You can also see our page for Southampton, roughly 16 miles from Old Alresford.
Jobs for window mastic in SO24 works the same way as everywhere else we cover. Window mastic is available to properties on Kiln Lane, Colden Lane and The Brook and the roads around them. Other places close to Old Alresford include Bighton (1 mile east), Northington (2 miles north-west), Totford (3 miles north-west), Brown Candover (3 miles north) and Upper Wield (4 miles north-east). Larger places within reach include Basingstoke (11 miles north), Winchester (7 miles south-west), Eastleigh (12 miles south-west), Horndean (15 miles south-east), Chandler's Ford (13 miles south-west) and Alton (9 miles east).
Landmarks near Old Alresford
In Old Alresford, that means homes and buildings near The Globe Inn, among other places. Other landmarks nearby include Barton Castle (3.1 miles north-east).
Towns and villages near Old Alresford
Other services in Old Alresford
What sealant work cannot fix
A few problems are outside what sealant work can do:
- A failed sealed unit that has misted up
- A sash or casement that won’t close properly
- Worn gaskets, brush seals or a door that has dropped
If in doubt, ring 0345 464 0079 or send us an email and we will say what we think.
Surfaces we seal
- Timber windows & doors
- Composite doors
- uPVC windows
- Window sills
- Patio & French doors
- Aluminium frames
Why it’s worth doing now in Old Alresford
Once mastic fails, rain can get between the frame and the wall. Left long enough, it can stain inside walls, spoil plaster and rot wooden frames. Resealing now is a small job by comparison. In a small place like Old Alresford, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.
Commercial jobs are quoted on the same basis as homes: how much there is to do, how we reach it and what it needs. Call for a quick quote and we will explain what it covers.
Why Old Alresford clients choose us
- 20+ years of sealant experience
- Sealant colour chosen to suit
- ARBOMaster approved applicator
- Sanitary silicone with an anti-fungal additive in wet areas
Take a look at our cost guide and customer reviews.