Highland · Scotland
Window Mastic in Lonemore
We cover Lonemore for mastic around window and door frames, sills and patio doors. Old sealant removed completely, joints prepared properly and every job guaranteed for a year.
- Rain getting in at the frame or under the sill
- Draughty joints inside around the window
- Untidy mastic left by window fitters
How it works
Before we leave, we go over the finished joints with you and explain the cure time. The work normally takes a few hours for a handful of frames, longer for a whole house, depending on the size of the job. Outside jobs in Lonemore need a dry day, because sealant will not bond to a wet joint, so an outdoor job can move if the forecast changes. Work indoors is not affected.
- First, we go round the frames with you and agree the list.
- We remove the old mastic and clean the frame edge and wall.
- Where the gap is deep, backing rod goes in first.
- A flexible exterior sealant is applied in a colour to suit the frame.
- Every joint is tooled smooth and checked before we leave.
How to prepare
- Let us know about earlier repairs to the joints
- Mention any sign-in or site rules at work premises
- Mention any parking rules near the property
How to get a quote
Every job is quoted individually. Simply send an email to info@mrmastic.co.uk and describe the job.
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About our window mastic in Lonemore
Most frames have an outside joint and an inside one. The external joint is the weather seal; inside, the joint between frame and plaster stops draughts and tidies the reveal. Either or both can be done. Typical jobs include mastic that’s falling out in pieces and leaking joints at the ends of sills, on composite doors, timber windows & doors and patio & French doors.
Older stone-built homes in Scotland often have sash and case or timber windows set in stone. The sealant has to suit the stone, which rules out acetoxy silicones that can mark or attack it.
All our work is covered by a 12-month guarantee.
- Where
- Lonemore (IV21)
- Region
- Highland
- Guarantee
- 12 months on all our work
- Quote
- A clear price before any work starts
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
Quotes for window mastic in Lonemore
Jobs vary more than people expect. The main factors:
- How easy the joints are to reach
- How much there is to do
- Mould in or behind the old joints
- Any working-time requirements on site
Every job is a little different, so we quote each one individually. Size, access and the product the joint needs all play a part.
What we need to know
There’s no need for technical detail. It helps if you can tell us:
- What the problem is, such as mould, gaps, leaks or cracking
- The type of property
- How we’d reach the joints
- Any previous sealing or DIY work
For window mastic in Lonemore, drop us a line at info@mrmastic.co.uk. Tell us what the problem is and where, and you will get a clear quote before any work starts.
Keeping the joints in good condition
No joint lasts for ever, but care makes a real difference. Our tips:
- Keep paint off silicone joints
- Walk round the house once a year and look at the joints
- Avoid blasting the frames with a pressure washer
- Wash the frames with mild soapy water
Keep the new mastic undisturbed while it cures, following the cure time we give you. Do not point a pressure washer at the joints.
Wet, windy weather is when failed mastic shows itself, but resealing works best in dry conditions. Dealing with it when you first notice a crack avoids chasing leaks through the wet months.
Other services in Lonemore
Honest limits
We will not take on work that will not last, so here’s what sealant can’t put right:
- A door that needs adjusting, rehanging or new seals
- Penetrating damp from a failed cavity tray or render
- Misting between the panes of a double-glazed unit (that needs a new unit)
If you are not sure, just send an email to info@mrmastic.co.uk and we will give you a straight answer.
Surfaces we seal
- Composite doors
- Window sills
- Aluminium frames
- Timber windows & doors
- uPVC windows
- Patio & French doors
Surface by surface
Timber windows & doors
Where timber has rotted at the joint, it needs repairing first. We will point out any rot we find, as a joiner will need to deal with it.
Aluminium frames
Coated aluminium needs a compatible sealant. Neutral-cure sealant is the safe choice.
Windows and doors in Lonemore
Lonemore 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. That’s hard on the mastic around window and door frames, especially on the side facing the sea. Many older homes in Scotland have sash and case windows, and the joint between the box frame and the stone or render is traditionally pointed with sand mastic.
In and around Lonemore, as anywhere, good window mastic starts with a clean, dry, properly prepared joint.
Lonemore is in Highland. Every kind of property in Lonemore can book us for window mastic. Every job comes with our 12-month guarantee. Our Highland coverage runs to 253 places, Lonemore among them.
Every address in IV21 is covered for window mastic, from the main roads to the quietest streets. Nearby, we also carry out window mastic in Gairloch (1 mile east), Badachro (2 miles south), Poolewe (5 miles north-east), Inverasdale (6 miles north) and Àird (9 miles north-east). For island and remote addresses, a little more planning is needed.
Local landmarks in Lonemore
Typical jobs here are in homes near Gairloch School. Nearby you’ll also find Gairloch Museum (1 mile east). Green spaces nearby include Linne a' Mhuilinn and Cnoc Dubh.
What we are called out for in Lonemore
Joint shape matters as much as the product. A skim of sealant over a wide gap soon tears, while a joint packed solid cannot stretch. That is what backing rod is for.
These are the problems we’re asked about most:
- Untidy mastic left by window fitters
- Gaps where the sill meets the wall
- Whistling draughts around closed windows
- Sealant in the wrong colour for the frame
Schools such as Gairloch High School are buildings too, and its window and door frames need their mastic kept sound, just like a home’s.
Comparing quotes
- Whether you can choose the colour
- How the joint is cleaned and prepared
- Are they insured?
- What guarantee comes with the work
DIY versus a professional finish
A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
A DIY attempt does not rule out a professional job. We remove it and do the joint properly, so tell us about it when you ask for a quote.
Common questions in Lonemore
Do you cover smaller places like Lonemore?
Yes, we do. We work across all of Scotland, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Is window mastic in a coastal place like Lonemore any different?
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.
How long should I leave it?
That depends on the sealant used, so please follow the time we give you when we finish.
Where is Mr Mastic based?
We’re a Crawley-based firm, with over 20 years’ experience. Our area covers South East England, London and Scotland.
Can I do it myself?
Sometimes. The key is preparation: remove all the old material and work on a clean, dry joint. If it doesn’t work out, we can redo it.
How long will my window job take?
Allow anything from an hour or two to a full day, depending on how many frames there are. Access and how stubborn the old mastic is affect the time most.
Do the sealants smell?
It depends on the product. Some smell for a while, some hardly at all, and any smell fades as they cure.
Which products do you use?
Products from Arbo and Everbuild, among others, picked for each joint. We explain the product when we quote.