Hampshire · England
Window & door mastic in Neatham, Hampshire
Professional window mastic in and around Neatham, with old sealant always removed completely and a one-year guarantee.
- Gaps where the sill meets the wall
- Mastic that has split away from the wall
- Mastic that’s falling out in pieces
How it works
All our tools and materials come with us in the van, so there’s nothing for you to buy. After a quick look at the joints together, we protect the area and start. Most jobs take anything from an hour or two to a full day, depending on how many frames there are. Somewhere like Neatham 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 confirm safe access to each frame.
- 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.
How to prepare
- Let us know about parking restrictions
- On commercial sites, let us know about site rules
- Clear items away from the joints we are working on
Get a quote
For a quote, phone 0345 464 0079 or drop us an email with the location and a short description of the problem. We will give you a clear quote before any work starts.
Related advice
Window mastic in Neatham, done properly
Every window and door frame has a gap around it, and mastic is what closes it. When it cracks, hardens or pulls away, draughts and rain get in. Our applicators cut it out and replace it with a flexible, weatherproof sealant. If you are dealing with cracked or shrunken mastic around the frame and water coming in at the bottom corners of a door, we can put it right.
Around Neatham, many homes face open ground, so their windows and doors take the full weather. That exposure dries out and cracks the mastic around frames and sills faster.
The work is guaranteed for twelve months. If something isn’t right with it in that time, tell us and we’ll put it right.
- Place
- Neatham (GU34)
- Region
- Hampshire
- Cover
- 12 months on all our work
- Quote
- A clear quote up front
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
Common questions in Neatham
Will you come out to Neatham?
Yes, we do. Our work covers London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
Do you work for landlords with property near Alton station?
Yes. We work for letting agents and landlords as well as homeowners. You can call 0345 464 0079 or drop us an email with the details for a clear quote.
Can you reach windows above the ground floor?
Yes, as long as they can be reached safely. Tell us about access when you get in touch and we’ll plan for it.
How many windows can you do in a day?
That depends on the number of frames, how they’re reached and the state of the old mastic. We’ll tell you how long your job needs when we quote.
Where do you work from?
We are a Crawley-based firm. We work across South East England, London and Scotland.
What should I tell you?
Just the basics: where it is, what you’ve noticed and how we reach it. Then call 0345 464 0079 or drop us an email.
Is it worth trying it myself?
Some simple jobs can be done by a careful DIYer. The usual mistakes are sealing over old sealant, sealing a damp joint and using too much.
Do I have to be there?
We need access to the joints, so we will agree that with you when we book. Indoors, that generally means someone at home.
DIY versus a professional finish
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.
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.
How the job changes by surface
Patio & French doors
The joints around patio doors run a long way, top, sides and threshold. Most leaks start at the bottom corners, so we pay close attention there.
Timber windows & doors
Timber moves with moisture as well as heat, so the joint must stay flexible. The paint or stain needs to be sound where the sealant meets it.
Nearby places to Neatham
Also in Neatham
Neatham homes and the weather
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. With historic houses such as Bentworth Hall (about 4.8 miles west) nearby, there’s older building stock in the area around Neatham as well as newer homes. 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.
For site and facilities teams at buildings such as Andrews' Endowed Church of England Primary School, larger buildings have plenty of frames, and the mastic around each one ages. For an older house near a landmark such as Holy Rood Church, frames set in older brick or stone need a sealant that suits the wall as well as the frame. Rented homes near Alton 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.
Neatham is about 2 miles north-east of Alton, in Hampshire. We carry out window mastic for householders, landlords and businesses in Neatham and the surrounding area, as part of our work across Hampshire. Our area takes in 683 places across Hampshire, large and small. Reading is on our list too, about 20 miles from Neatham.
We cover every part of GU34 for window mastic. Other places close to Neatham include Holybourne (1 mile north-west), Wyck (1 mile south-east), Upper Froyle (1 mile north-east), Alton (2 miles south-west) and East Worldham (2 miles south). Within a short drive, we also cover Basingstoke (10 miles north-west), Farnborough (12 miles north-east), Fleet (9 miles north-east), Aldershot (10 miles north-east), Petersfield (11 miles south) and Yateley (13 miles north).
Near you in Neatham
We work in homes and buildings around Treloar School, White Hart pub and Eggar's School. The nearest railway station is Alton station, roughly 1.3 miles south-west of the centre. Well-known places in the area include Allen Gallery (1.6 miles south-west) and Alton Community Hospital (2.6 miles south-west). The countryside around Neatham includes Holybourne Hill.
When it is not the sealant
We will not take on work that will not last, so these are the limits:
- Faulty window hardware
- Misting between the panes of a double-glazed unit (that needs a new unit)
- A frame that has rotted at the joint
Not sure which it is? You can call 0345 464 0079 or send us an email and we will tell you honestly.
What we seal
- Window sills
- Timber windows & doors
- uPVC windows
- Composite doors
- Aluminium frames
- Patio & French doors
For landlords and businesses
Whether it’s one flat or a portfolio, you get the same standard of work: old sealant fully removed, joints prepared properly and a one-year guarantee.
In hotels, rooms out of use cost money, so we plan the work room by room around your bookings where we can. We have worked in hotels as well as homes and businesses.
How we quote for window mastic
For a quick quote, just ask. The main things that affect it are:
- The old material and how stubborn it is
- The type of sealant required
- The amount of work
- How many areas need sealing
There are no prices on our website, because the cost depends so much on the job itself. For a quick quote, please phone 0345 464 0079 or drop us an email and we’ll talk you through it.
What to tell us for a quote
Photos help, but a description is a good start. Try to tell us:
- If someone has resealed it before
- If it’s domestic, commercial or a hotel
- What’s wrong with the joints now
- A few photos by email, if you can
Need a quote? Please ring 0345 464 0079 or send 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.
What happens if it’s left?
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. A reseal is a much smaller job. Around Neatham, older homes often have timber in their floors and frames, and water through a failed joint can rot timber if it’s left.
Some things make a job bigger or smaller: the old material and how easily it comes out, whether mould needs treating, and whether we need extra access for height. Your quote takes all of that into account.
What you get with us
- Over 20 years’ experience
- An ARBOMaster approved applicator
- Full insurance on every job
- Trusted Arbo and Everbuild sealants
Take a look at how sealant jobs are priced or what customers say.