Portsmouth · England
Window & door mastic in Drayton, Portsmouth
Window mastic across Drayton and nearby, with old sealant always removed completely.
- Leaking joints at the ends of sills
- Draughty joints inside around the window
- Black, perished sealant on frames
Window mastic in Drayton
Around Drayton we seal all kinds of frames: uPVC, aluminium, timber and composite, along with patio doors, French doors and sills. The sealant is chosen to suit the frame material and the wall. We work on patio & French doors, aluminium frames and uPVC windows, and common reasons people get in touch are cracked or shrunken mastic around the frame and sealant in the wrong colour for the frame.
Around Drayton, conservatories, garden rooms and patio doors are often part of the house. Those joints need the same attention as the main windows, and any older timber or sash windows need a sealant that suits them.
Each job carries a 12-month guarantee.
- Place
- Drayton (PO6)
- Wider area
- Portsmouth
- Guarantee
- One year on every job
- Quotes
- Quoted before any work starts
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
Why act early in Drayton
Working on frames from a ladder with a sealant gun is not easy, especially on upper floors. A professional job is cut out properly, backed where needed and finished neatly, in a sealant suited to the wall. In a smaller place like Drayton, wherever a wall is exposed, a failed outside joint is a real source of damp. Indoors, a failed seal lets water into floors and panels as it would anywhere.
The cost depends on the size of the job, how much old material has to come out and how easy the joints are to reach. We give a clear quote before work begins.
Why choose Mr Mastic in Drayton
- 180+ five-star Google reviews
- A choice of colours where the product allows
- Sanitary silicone with an anti-fungal additive in wet areas
- Fully insured
Read what affects the cost or our reviews.
The process
When we get to you, we compare the joints with what we discussed. If anything is different, we explain it before carrying on. Most jobs then take a few hours for a few frames, or a day or more for a whole house. A visit to Drayton is planned like any other: the time, the access and where to park are agreed in advance. Outdoor jobs depend on a dry day, since sealant needs a dry surface.
- First we look at every frame and agree the list.
- The old mastic is cut out and the surfaces cleaned back.
- We fit backing rod in deep gaps so the sealant is the right depth.
- We apply a weatherproof sealant to match the frame and tool it neatly.
- Every joint is checked before we leave.
Getting ready for the visit
- Let us know about parking restrictions
- Clear the area around the work
- Let us know if you’ve seen damp or leaks
Ask for a quote
For a quote, phone 0345 464 0079 or send us an email with the location and a short description of the problem. We’ll give you a clear quote before any work starts.
Read more
Aftercare tips
A little care helps the new joints last. Our advice:
- Clean frames with a soft cloth and soapy water
- Wipe condensation off the frames
- Keep drainage slots and sill grooves clear
- Keep paint off silicone joints
Most silicone sealants won’t take paint, so mention any painting plans before we start. There are paintable sealants for joints that need it.
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.
What window mastic looks like in Drayton
Drayton is within about 1 mile of the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. Both are hard on the mastic around window and door frames, which can dry out and crack sooner where a building faces the weather. With historic houses such as Warblington Castle (about 3.4 miles east) nearby, there’s older building stock in the area around Drayton as well as newer homes. Where a home is older, older timber frames in brick or stone need a different approach from a modern uPVC window.
In the older streets around Drayton Methodist Church, the joint between an old wall and a newer frame is normally the first place rain gets in. Letting a property close to Cosham station? Then sound mastic around windows and doors keeps out the draughts and damp that tenants notice first.
Drayton is about 2 miles south of Purbrook, in Portsmouth. Drayton gets the same service as everywhere we cover: the old material taken out, joints prepared properly and a 12-month guarantee. Our Portsmouth coverage runs to 19 places, and Drayton is one of them.
We work across PO6 for window mastic. Window mastic is available to properties on Galt Road, Hirst Road and Court Lane. Close by, we work in Farlington (1 mile east), Widley (1 mile north), Cosham (1 mile west), Wymering (1 mile west) and Hilsea (2 miles south-west). Within a short drive, we also cover Portsmouth (3 miles south-west), Southsea (4 miles south), Milton (4 miles south), Landport (3 miles south-west), Baffins (3 miles south) and Rudmore (3 miles south-west).
Landmarks near Drayton
We work in homes and buildings around Solent Junior School and New Inn. The nearest railway station is Cosham station, about 1 mile west. Other landmarks nearby include Portchester Castle (3.1 miles west) and World War I Remembrance Centre (1 mile south). For a walk, there’s Portsdown Hill and Southmoor Nature Reserve.
What affects the quote in Drayton
Some jobs are bigger than they look, and some smaller. What affects the quote:
- When we can work, for business premises
- The product the joint needs
- Whether old sealant or filler has to be cut out
- Mould in or behind the old joints
Combining jobs into one visit is generally more efficient than separate visits, so tell us about everything that needs sealing. You will get one clear quote for the whole job.
Helping us quote
Photos help, but a description is a good start. Please mention:
- How we’d reach the joints
- Whether it’s a home or a business
- Where the job is, and your postcode
- Pictures of the joints, sent by email
For window mastic in Drayton, ring 0345 464 0079 or email us. Tell us what the problem is and where, and you will get a clear quote before any work starts.
Should I try it myself first?
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.
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.
What else we do in Drayton
When to call us in Drayton
A lot of older mastic was never designed to stay flexible. Once it has hardened, the frame’s movement tears it from the wall, and a gap opens along one edge.
Most people get in touch when they notice one of these:
- Sealant in the wrong colour for the frame
- Rushed sealant from a window installation
- Old mastic that has gone black or come away
- Cold air getting in at the frame edge
Managing a site like Springfield School? Then the mastic around its windows and doors needs looking after like any other building’s.
Comparing quotes
- When the joint can take water or movement
- What guarantee comes with the work
- Are they insured?
- Whether you can choose the colour
Common questions in Drayton
Can you help a landlord with a rental near Cosham station?
Yes. We work for landlords and agents as well as homeowners, and several properties can be quoted together. Just phone 0345 464 0079 or drop us an email with the address and what needs doing, and we’ll give you a clear price.
Does living near the coast affect window mastic in Drayton?
Near the coast, wind-driven rain and, nearer the shore, salt air make outside sealant work harder. The right product, a clean joint and the right depth all help it cope.
Can you reach windows above the ground floor?
Yes, where it’s safe. For high or awkward windows, we’ll tell you what access is needed.
Do you seal inside as well as outside?
Yes, we do both. Inside, the joint between frame and plaster is sealed neatly.
How long does it take to reseal the windows on a house?
The work takes most of a day for a typical house, less for a few frames. Access and how stubborn the old mastic is affect the time most.
Do you work for hotels and businesses?
Yes. We’ve worked for hotels, offices and other businesses.
Can you match the sealant to my frames?
Yes. We can use white, brown, anthracite grey, black or clear.
Are you fully insured?
Yes. We are fully insured, and we can confirm the details when we quote.
What we cannot put right
To be straight with you, there are a few things sealant won’t fix:
- Worn gaskets, brush seals or a door that has dropped
- Condensation trapped between the panes
- Soft or decayed wood in the frame
If in doubt, ring 0345 464 0079 or email us and we’ll say what we think.
Joints and surfaces we work on
- Window sills
- Aluminium frames
- Timber windows & doors
- uPVC windows
- Patio & French doors
- Composite doors