Hampshire · England
Window & door mastic in Anthill Common, Hampshire
Problem with your window and door frames in Anthill Common? We cut out the old, prepare the joints and apply the right sealant, and the work is guaranteed for a year.
- Leaking joints at the ends of sills
- Cracked or shrunken mastic around the frame
- Sealant in the wrong colour for the frame
Window mastic in Anthill Common
If you can feel air around a shut window, the gap is often at the frame. A new joint stops the air getting through and quietens the whistle on windy days. If the draught is through the window seals instead, we’ll tell you. Common call-outs are for whistling draughts around closed windows and draughty joints inside around the window, on window sills, uPVC windows and patio & French doors.
Somewhere as small as Anthill Common, 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.
You get a one-year guarantee, the same in Anthill Common as everywhere else we work.
- Where
- Anthill Common (PO7)
- Region
- Hampshire
- Guarantee
- 12 months on all our work
- Price
- A clear quote up front
- Call
- 0345 464 0079
- Updated
- 26 October 2026
DIY versus a professional finish
The difference is mostly in the preparation and the product. Joints are cleaned back to sound surfaces and dried, and the sealant is matched to the joint and its conditions, then guaranteed for a year.
If you’re set on DIY, put the effort into 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.
Windows and doors in Anthill Common
London and the South East are among the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
If you live in an older home near Church of All Saints, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
Anthill Common is about 3 miles north-west of Waterlooville, in Hampshire. We provide window mastic to homes and businesses in Anthill Common and the surrounding area. Anthill Common is one of 683 places in Hampshire we cover. You can also see our page for Portsmouth, about 7 miles away.
All of PO7 is within our area for window mastic, from the main roads to the quietest streets. Streets in the area include Broad Lane, School Lane and Uplands Road, and we cover them all. If you are just outside Anthill Common, we cover Denmead (1 mile south-east), Hambledon (1 mile north), Anmore (2 miles east), Wecock Farm (2 miles east) and Lovedean (3 miles east). Within a short drive, we also cover Winchester (14 miles north-west), Gosport (8 miles south), Havant (5 miles south-east), Eastleigh (12 miles west), Fareham (6 miles south-west) and Chandler's Ford (14 miles west).
What’s near Anthill Common
Typical jobs here are in homes near Fox and Hounds pub and the streets around them. Anthill Common’s nearest station is Portchester station, roughly 4.6 miles south of the centre. Nearby you’ll also find Queen Alexandra Hospital (4.2 miles south). Open spaces near Anthill Common include St Clair's Meadow and Portsdown Hill.
Work for landlords, hotels and businesses
We also work for businesses, from offices to washrooms and kitchens. On commercial sites, working times can be discussed when we quote.
In hotels, rooms out of use cost money, so we plan the work room by room. We have worked in hotels as well as homes and businesses.
Places near Anthill Common
More services for Anthill Common
Why deal with it now?
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. Around Anthill Common, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.
There are no prices on our website, because the cost depends so much on the job itself. Call for a quick quote.
Why choose Mr Mastic in Anthill Common
- Sanitary silicone with an anti-fungal additive in wet areas
- Every job guaranteed for a year
- Approved under the ARBOMaster scheme
- Fully insured
See what affects the cost and our reviews.
What affects the cost of window mastic
Every job gets its own quote. This is what makes a difference:
- The amount of work
- Whether old sealant or filler has to be cut out
- Mould in or behind the old joints
- How many areas need sealing
Combining jobs into one visit normally makes better use of the time than several visits, so it’s worth mentioning everything you’d like done. We’ll send you a clear quote for the lot.
What to tell us for a quote
When you contact us, it’s useful to know:
- The type of property
- The address or postcode of the job
- Access, such as stairs, a lift or height
- The problem you’ve noticed
Asking for a quote is easy: let us know the job and the location and its rough size. A few photos by email make the job easier to understand, and we will take it from there.
Different surfaces, different methods
Composite doors
A composite door generally sits in a plastic outer frame, and the joint around it is sealed like a window. We match the colour to the frame.
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.
Anthill Common: your questions answered
Can you help a landlord with a rental near Portchester station?
Yes. We work for landlords and letting agents as well as householders. You can call 0345 464 0079 or email us with the details for a clear quote.
Do you cover Anthill Common for window mastic?
Yes, Anthill Common is within the area we cover. We work across London and the South East. Just call 0345 464 0079 or send us an email with a few details of the job.
Can I do it myself?
It depends on the job. High-level, external movement and fire-rated joints are professional jobs.
Do you do commercial work?
Yes. Hotels, offices and other businesses use us.
When is the sealant fully cured?
Most sealants are touch-dry well before they’re fully cured. We’ll give you the cure time for the product we used.
Do you remove the old sealant?
Always. Sealing over the old bead is the commonest cause of early failure, and it’s something we never do.
Can you get sealant to suit coloured frames?
Yes, in most cases. Tell us the frame colour when you get in touch and we’ll match it as closely as we can.
Where are you based?
We’re based in Crawley, and we work across South East England, London and Scotland.
What we do, step by step
There’s no need to move everything out before we come, only the area right around the joints. Everything nearby is protected, and the job takes a few hours for a handful of frames, longer for a whole house in most cases. Somewhere like Anthill Common needs a little journey planning: tell us about narrow lanes, gates, long drives and where we can park. We bring what the job needs, so it can be finished in one trip where possible.
- First, we confirm safe access to each frame.
- Old, cracked mastic is removed completely, along with any loose debris.
- Frame and wall are cleaned and must be dry before sealing, and primed where the sealant calls for it.
- Backing rod fills deep voids and the sealant goes in on top.
- The joint is shaped to shed water and the area tidied.
Getting ready for the visit
- Tell us if parking is tricky
- Tell us about any water getting in
- Mention any sign-in or site rules at work premises
Get a quote
For a quick quote, get us on the phone, or send an email if you’d rather. Describe what needs sealing and we will explain what’s involved.
Read more
Signs you need window mastic in Anthill Common
Sills take more water than any other part of a window, and the ends of the sill, where it meets the wall, are where it gets in. Failed sealant there lets rain into the wall or behind the frame.
People usually contact us when they notice one of these:
- A bead that doesn’t match the frame
- Cracked sealant at the sill ends
- Water coming in at the bottom corners of a door
- Rushed sealant from a window installation
Rented homes near Portchester 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.
Comparing quotes
- Whether the sealant suits the joint
- Whether VAT is included
- Who does the work, and how experienced they are
- Is the old sealant removed completely?