Highland · Scotland
Window & door mastic in Invermoriston, Highland
Window mastic in Invermoriston from a team with over 20 years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Cold air getting in at the frame edge
- Black, perished sealant on frames
- Sealant in the wrong colour for the frame
What the job involves on each surface
uPVC windows
Plastic frames move a lot between a hot afternoon and a cold night, so we use a flexible, low-modulus sealant. We match white, brown, anthracite grey and black frames.
Window sills
Where a sill meets brick or render, the ends often crack first. We reseal them so rain cannot run into the wall.
Window mastic in Invermoriston
Most frames have an outside joint and an inside one. Outside, the mastic keeps rain out; inside, the joint between frame and plaster stops draughts and tidies the reveal. We seal one or both, depending on what’s needed. If you have whistling draughts around closed windows and untidy mastic left by window fitters, we can put it right.
In and around a place like Invermoriston, homes range from older stone-built cottages to newer houses. Wind-driven rain finds any gap around a frame or sill.
There’s a 12-month guarantee on every job, whatever its size.
- Location
- Invermoriston (IV63)
- Wider area
- Highland
- Cover
- A year, on every job
- Quotes
- A clear quote up front
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
What we are called out for in Invermoriston
Sills take more water than any other part of a window, so the sill ends and the joint below the frame are common leak points. Failed sealant there lets rain into the wall or behind the frame.
The problems people normally mention when they call include:
- Cold air getting in at the frame edge
- Rushed sealant from a window installation
- Black, perished sealant on frames
- Hard, cracked sealant around windows
If you live in an older home near Church of Scotland, the joint between an old wall and a newer frame is usually the first place rain gets in.
Comparing quotes
- Is VAT in the price?
- Whether you can choose the colour
- How much experience the applicator has
- How long to leave it before use
What we cannot put right
We’d rather tell you now than do work that will not last, so here’s what sealant can’t put right:
- Rotten timber, which needs a joiner first
- Faulty window hardware
- Draughts through the window seals rather than the frame
If you’re not sure, just send an email to info@mrmastic.co.uk and we will give you a straight answer before you book.
What we seal
- Window sills
- Composite doors
- uPVC windows
- Timber windows & doors
- Patio & French doors
- Aluminium frames
Can I do it myself?
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.
Too much sealant is as bad as too little. A thick, smeared bead looks untidy and does not move well, and getting the depth right matters as much as the look.
What we do, step by step
We work through the job in order: protect, prepare, seal, tidy. For most jobs that takes a few hours for a handful of frames, longer for a whole house and we leave things clean and tidy. Somewhere like Invermoriston may be a longer drive, and the journey is planned ahead. Tell us about tracks, gates, a ferry crossing or anything unusual about getting there.
- We check how each frame can be reached safely.
- All the failed sealant is cut away.
- The surfaces are cleaned and left dry.
- Deep voids are backed, then the sealant is gunned in.
- We tool the joint so water runs off, then clear up.
How to prepare
- Try not to wet indoor joints just before the visit
- Plan for the work area to be out of bounds to pets and children
- Clear items away from the joints we are working on
Ask for a quote
For a quote, send an email to info@mrmastic.co.uk and tell us where the job is and what the problem looks like. We will give you a clear quote before any work starts.
Advice
Windows and doors in Invermoriston
Sash and case windows are common in older Scottish homes, often pointed into the wall with traditional sand mastic. Under the Repairing Standard, private landlords in Scotland have to keep homes wind and watertight, and failed outside joints work against that.
In and around Invermoriston, as anywhere, good window mastic starts with a clean, dry, properly prepared joint.
Invermoriston is about 23 miles south-west of Inverness, in Highland. Our applicators cover window mastic for homeowners, landlords and businesses in Invermoriston and the surrounding area, as part of our work across Highland. Across Highland, we cover 253 places, Invermoriston among them.
Jobs for window mastic in IV63 works the same way as everywhere else we cover. Streets in the area include Riverside Park and Glendale Park, all of which we cover. Neighbouring places we cover for window mastic include Stratherrick (4 miles south-east), Fort Augustus (5 miles south-west), Gorthleck (7 miles east), Glen Moriston (7 miles south-west) and Newtown (9 miles south-west). If you are somewhere remote, a little more planning is needed.
Near you in Invermoriston
Green spaces nearby include Loch a' Mheig and Càrn an t-Seana-bhlàir.
Places near Invermoriston
Also in Invermoriston
FAQs for Invermoriston
Do you cover Invermoriston for window mastic?
Yes, Invermoriston is within the area we cover. Our work covers the whole of Scotland. You can drop us a line at info@mrmastic.co.uk and let us know what needs doing.
Do you cover smaller places like Invermoriston?
Yes, smaller places are covered as well as towns. Our work covers the whole of Scotland. Let us know about access, parking and anything unusual about getting there when you book.
Are you insured?
Yes. We are fully insured for domestic and commercial work.
Do I need to be at home?
For indoor joints, yes, someone needs to let us in. Once we’ve agreed the job, you don’t need to watch us work.
Can landlords and businesses book you?
Yes, often. We can quote for several properties at once, and between tenancies is a good time for the work.
Will resealing my frames help with draughts?
If the draught is coming in around the frame, yes. If it’s coming through the window seals, we will tell you.
Can you seal the gap between the frame and the plaster indoors?
Yes. Plenty of draughts come through the inside joint as well as the outside, so sealing both is often worthwhile.
I rent my home. Can I book you?
We can work for tenants, landlords or agents. Just make sure your landlord agrees.
Leave it or put it right?
Running fresh sealant over the old joint is tempting, but new sealant cannot bond to old, crumbling mastic. It soon lifts and the leak carries on behind it. The old mastic has to come out. Exposed walls in smaller Scottish places take a lot of wind and rain, and damp in stone or harled walls takes a long time to dry once water gets behind a joint.
Some things make a job bigger or smaller: how much old sealant there is and how stubborn it is, any mould to treat, and whether the work is at height. We take all of that into account in your quote.
What you get with us
- Sanitary silicone with an anti-fungal additive in wet areas
- Homes, businesses and hotels
- You choose the colour before work begins
- Old sealant always removed completely
How we quote for window mastic
Some jobs are bigger than they look, and some smaller. The main factors:
- Mould in or behind the old joints
- How much old sealant there is and how hard it is to remove
- The size of the job
- Any working-time requirements on site
Rather than a set price list, we look at what your job involves: how many joints, what’s in them now and how we reach them. The price is agreed before we begin.
Helping us quote
Photos help, but a description is a good start. Try to tell us:
- Photos by email, if that is easy
- The problem you’ve noticed
- Access, such as stairs, a lift or height
- If someone has resealed it before
Getting a quote is simple: let us know the job and the location, and roughly how big it is. Photos by email help us understand the job.