Hampshire · England
Bedhampton Window Mastic
Our applicators work in Bedhampton on mastic around window and door frames, sills and patio doors. Old sealant removed completely, joints prepared properly.
- Whistling draughts around closed windows
- Damp patches on the reveal after heavy rain
- Rushed sealant from a window installation
About our window mastic in Bedhampton
Mr Mastic’s applicators have more than 20 years’ experience with window and door sealants. We are fully insured ARBOMaster approved applicators, and every job is covered by a 12-month guarantee. Common call-outs are for black, perished sealant on frames and draughty joints inside around the window, across patio & French doors, window sills and aluminium frames.
Houses in smaller places like Bedhampton can stand more in the open than those in a built-up town, so exposed windows and doors face the weather head on. That’s hard on the mastic around frames and sills.
Big or small, it’s backed by our 12-month guarantee in Bedhampton and across Hampshire.
- Place
- Bedhampton (PO9)
- Region
- Hampshire
- Guarantee
- One year on every job
- Quotes
- A clear quote up front
- Call
- 0345 464 0079
- Last updated
- 26 October 2026

Bedhampton questions
Do you work for landlords with property near Bedhampton station?
Yes, we work for letting agents and landlords. Just phone 0345 464 0079 or email us and tell us about the property, and we’ll give you a clear price.
Does living near the coast affect window mastic in Bedhampton?
Coastal weather is harder on outside sealant: there’s more wind-driven rain and, closer to the shore, salt in the air. The right product, a clean joint and the right depth all help it cope.
Is it OK to seal over old sealant?
No. New silicone will not bond to old silicone, and anything trapped underneath, including mould and water, stays there. It all has to come out first.
Do you have insurance?
Yes. We are fully insured for domestic and commercial work.
Does the work come with a guarantee?
Yes. Our one-year guarantee covers every job.
Do you seal inside as well as outside?
Yes, we do both. Inside, the joint between frame and plaster is sealed neatly.
When is the sealant fully cured?
Different products cure at different speeds, so please follow the time we give you when we finish.
Where do you work from?
Our base is Crawley. Our area covers South East England, London and Scotland.
DIY versus a professional finish
If you’re set on DIY, put the effort into preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it fails, we can still redo it.
A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
How it works
The work is kept neat and contained to the joints we’re treating. Expect the work to take a morning for a couple of windows and a door. For a job in Bedhampton, we agree the time, the access and parking before the day. If the work is outside, the weather plays a part, as sealant needs a dry surface.
- First, we confirm safe access to each frame.
- Old, cracked mastic is removed completely, along with any loose debris.
- The surfaces are cleaned and left dry, and primed where the sealant calls for it.
- Backing rod fills deep voids and the sealant goes in on top.
- We tool the joint so water runs off, then clear up.
Preparing for the visit
- For indoor joints, keep the area dry beforehand if you can
- Plan for the work area to be out of bounds to pets and children
- Mention any sign-in or site rules at work premises
Ask for a quote
Getting a quote is simple: tell us what needs doing and where and its rough size. A few pictures by email make the job easier to understand.
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Places near Bedhampton
Other services in Bedhampton
What window mastic looks like in Bedhampton
Bedhampton is close to the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. That is hard on the mastic around window and door frames, especially on the side facing the sea. Historic houses like Warblington Castle (about 1.7 miles south-east) are a reminder that the area around Bedhampton has older buildings as well as new. Where a home is older, older timber frames in brick or stone need a different approach from a modern uPVC window.
If you let a flat or house near Bedhampton station, cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets. For site and facilities teams at buildings such as Bidbury Junior School, the mastic around its windows and doors needs looking after like any other building’s. For an older house near a landmark such as St Nicholas Church, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Bedhampton is about 1 mile south-west of Havant, in Hampshire. We carry out window mastic for homes and businesses in Bedhampton and nearby, as part of our work across Hampshire. Bedhampton is one of 683 places in Hampshire where we work for window mastic.
Every address in PO9 is covered for window mastic. You’ll find streets such as Palk Road, Knox Road and Mill Lane. If you are just outside Bedhampton, we cover Farlington (1 mile south-west), Purbrook (2 miles north-west), Drayton (2 miles west), Widley (2 miles west) and Waterlooville (2 miles north-west). Larger places within reach include Gosport (7 miles south-west), Fareham (8 miles west), Horndean (4 miles north), Hedge End (14 miles west), Petersfield (11 miles north) and Locks Heath (12 miles west).
Landmarks near Bedhampton
Locally, jobs take us to homes and businesses close to Havant College and The Golden Lion pub and the streets around them. Bedhampton has its own railway station: Bedhampton station. A little further out are Warblington Castle (1.7 miles south-east) and Havant Museum (1.1 miles east). Open spaces near Bedhampton include Portsdown Hill and Southmoor Nature Reserve.
Why it’s worth doing now in Bedhampton
Getting a straight, even bead on an outside frame takes practice, especially on upper floors. We cut out properly, back deep gaps and tool every joint neatly, using a product chosen for the frame and wall. Around Bedhampton, water from a failed joint in an older home can soak into timber and plaster, and that’s a much bigger job than renewing the sealant.
A few things move the cost up or down: how much old sealant there is and how stubborn it is, any mould to treat, and whether we need extra access for height. We take all of that into account in your quote.
What you get with us
- You choose the colour before work begins
- Experience in homes, commercial sites and hotels
- 20+ years of sealant experience
- White, clear, grey or coloured to suit, where the product allows
See what affects the cost and what customers say.
What affects the quote in Bedhampton
Your quote is based on your job. We look at:
- Any working-time requirements on site
- The number of rooms or windows
- The product the joint needs
- Whether there’s mould to deal with
Rather than a set price list, we price the job in front of us: the amount of work, the old material and the access. You’ll know the price before we begin.
Helping us quote
What to tell us when you ask for a quote:
- A few photos by email, if you can
- If someone has resealed it before
- How we’d reach the joints
- The rough size of the job
We quote each job on its own, so start by telling us what you need. Just ring 0345 464 0079 or send us an email with the details and send photos if you have them.
Different surfaces, different methods
Timber windows & doors
Wood swells when it’s wet and shrinks when it dries, so the joint must stay flexible. The paint or stain needs to be sound where the sealant meets it.
Composite doors
An exposed front door gets wind-driven rain, and the top and bottom corners tend to fail first. We pay most attention there.
Landlords, agents and businesses in Bedhampton
Water getting past a failed joint can damage the building, which matters even more when someone else lives there. Keeping joints in good order is simple maintenance.
Housing providers, facilities teams and property managers book us too in Bedhampton and across Hampshire. We can quote a run of properties together, and we’re fully insured for the work.
Aftercare tips
A little care helps the new joints last. We recommend:
- Don’t use solvent cleaners on the joint
- Keep jet washers away from the mastic
- Make sure the drainage slots aren’t blocked
- Keep timber frames painted
Clean the frames with mild soapy water, and avoid solvent cleaners on the sealant.
Draughts get worse, not better. As old mastic keeps shrinking, the gap widens, and a cold room gets colder. Resealing closes it.
