Hampshire · England
Dummer Window Mastic
Problem with your window and door frames in Dummer? We remove the old material, prepare the joints and seal them properly.
- Cracked internal joints between frame and plaster
- Draughts coming in around windows and doors
- Rain getting in at the frame or under the sill
What affects the cost of window mastic
The price is agreed before any work begins. It’s based on:
- How much there is to do
- How easy the joints are to reach
- Any working-time requirements on site
- The type of sealant required
A failed joint rarely gets cheaper to fix by waiting, because water and mould keep working on it. If you are unsure, ring 0345 464 0079 or send us an email for an honest opinion and a quote.
What to tell us for a quote
You do not need to know the technical terms. Just tell us:
- Whether it has been sealed before
- The type of property
- What’s wrong with the joints now
- Photos by email, if that is easy
Asking for a quote is easy: let us know the job and the location, and roughly how big it is. Photos by email help us understand the job, and we will come back to you with a quote.
Window mastic in Dummer, done properly
Homes in Dummer have every kind of window: uPVC, aluminium, timber and composite, plus patio doors, French doors and sills. The sealant is chosen to suit the frame material and the wall. We’re often asked to deal with gaps between the frame and the inside reveal and sealant in the wrong colour for the frame, across window sills, uPVC windows and aluminium frames.
In a village or hamlet like Dummer, 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.
Your job is guaranteed for a year, as with all our work.
- Place
- Dummer (RG25)
- Region
- Hampshire
- Cover
- One year on every job
- Quote
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
What we are called out for in Dummer
Timber windows bring their own problems. Mastic painted over many times cracks with the paint, and the wood moves with damp as well as heat.
Common reasons people contact us include:
- Rushed sealant from a window installation
- Cracked internal joints between frame and plaster
- Cracked or shrunken mastic around the frame
- Sealant in the wrong colour for the frame
Letting a property close to Micheldever station? Then renewing tired window mastic between tenants heads off draught and damp complaints.
What to look for in a quote
- What product goes in the joint
- Who does the work, and how experienced they are
- What the cure time is
- How the surfaces are prepared before sealing
The process
Good joint work is mostly preparation, and we don’t rush it. Every joint is cleaned and dried before new material goes in. In total, it usually takes most of a day for a typical house, less for a few frames. Somewhere as small as Dummer, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- Each frame is looked over and we agree which ones need resealing.
- We remove the old mastic and clean the frame edge and wall.
- Where the gap is deep, backing rod goes in first.
- The new sealant goes on in white, brown, anthracite grey, black or clear to suit.
- We tool each bead neatly and check every joint is closed.
Before we arrive
- Tell us if parking is tricky
- Clear the area around the work
- Let us know about stairs, lifts or work at height
How to get a quote
Call for a quick quote, or email us if that’s easier. Tell us about the joints that need doing and we’ll explain what’s involved.
Read more
What window mastic looks like in Dummer
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.
Homes close to Church of All Saints include some older properties, and frames set in older brick or stone need a sealant that suits the wall as well as the frame.
Dummer is about 4 miles south-west of Basingstoke, in Hampshire. Dummer gets the same service as everywhere we cover: the old material taken out, joints prepared properly and a 12-month guarantee. Dummer is one of 683 towns and villages in Hampshire where we work. There’s also a page for Reading, about 18 miles away.
Work in RG25 works the same way as everywhere else we cover. Streets in the area include Down Street, Post Office Lane and Porters Close, and we cover them all. If you’re just outside Dummer, we cover North Waltham (2 miles west), Farleigh Wallop (2 miles east), Kempshott (2 miles north), Hatch Warren (2 miles north-east) and Oakley (3 miles north). Within a short drive, we also cover Basingstoke (4 miles north-east), Winchester (13 miles south-west), Fleet (15 miles east), Andover (14 miles west), Alton (9 miles south-east) and Tadley (10 miles north).
Near you in Dummer
We work in homes and buildings around The Queen Inn and the streets around them. For rail, the closest station is Micheldever station, roughly 4.8 miles south-west of the centre. Other landmarks nearby include Park Prewett Hospital (5 miles north). Open spaces near Dummer include Farleigh Hill.
What else we do in Dummer
Should I try it myself first?
If you do try it yourself, take your time over the preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it does not work out, we can still put it right.
The difference is mostly in the preparation and the product. Joints are cleaned back to sound surfaces and dried, and the sealant is chosen for how the joint moves and where it is, and the work is guaranteed for a year.
What the job involves on each surface
Composite doors
An exposed front door gets wind-driven rain. We pay most attention there.
Timber windows & doors
Wood swells when it’s wet and shrinks when it dries, so a flexible sealant is essential. We seal onto sound, dry paintwork or timber.
Aftercare tips
Aftercare is simple:
- Repaint timber before it’s bare
- Keep jet washers away from the mastic
- Keep drainage slots and sill grooves clear
- Avoid harsh chemicals near the mastic
Clean the frames with mild soapy water, and avoid solvent cleaners on the sealant.
Leaks generally show up in wet, windy weather, but sealant goes on best when frames and walls are dry. Sorting cracked mastic early means the joint is sound before the bad weather.
Work for landlords, hotels and businesses
For anyone letting property in or around Dummer, several properties can go on one quote. Just tell us the addresses and what each one needs.
A neglected joint can let water reach the structure, which matters even more when someone else lives there. Resealing at the right time is simple maintenance.
FAQs for Dummer
Can you help a landlord with a rental near Micheldever station?
Yes. We work for letting agents and landlords as well as householders, and several properties can go on one quote. You can phone 0345 464 0079 or drop us an email with the details for a clear quote.
Can you do window mastic in Dummer?
Yes, Dummer is within the area we cover. We work across London and the South East. Just phone 0345 464 0079 or email us with a few details of the job.
Can you do several jobs on one visit?
Yes, and it often makes sense. Combining jobs makes good use of the visit.
How long should I leave it?
Most sealants are touch-dry well before they’re fully cured. We will tell you how long to leave the joint.
Do you work for hotels and businesses?
Yes. We have worked for hotels, offices and other businesses and we are fully insured.
How long will my window job take?
It depends on access, the old mastic and the size of the frames. You will know the timing when we quote.
What do you need from me for a quote?
Where the job is, what the problem is and roughly how big it is. Photos by email help too.
Are you fully insured?
Yes, we’re fully insured for every job we do.