Keills construction mastic
We carry out mastic packages for new-build and refurbishment projects in Keills and the surrounding area. Send photos or drawings for a fixed quote.
- Missed perimeter joints on a new elevation
- Frame gaps too wide for sealant alone
- Sealant knocked or painted over by other trades
Construction mastic in Keills
Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.
How we handle construction mastic in Keills
Most of the packages we price run well beyond frames: frame perimeters inside and out, caulking to trims and boards where the specification calls for it, sanitary silicone, kitchens, and the final snag list. One contractor for all of it keeps the responsibility in one place. We work on window and door perimeters, internal decorators’ caulk and cladding and panel joints, and what we’re called in for most is a mastic package split between trades with no clear owner and perimeter gaps outside the sealant’s range. Whoever orders the work in Keills, the brief is typically the same: a clear scope, tidy work and joints that don’t fail again.
For a site around Keills, we plan the mastic in as few trips as the programme allows. Clear drawings, a programme and photos let us bring the right sealants, primers and backing rod first time.
The 12-month guarantee covers our workmanship: the preparation, the sealing and the tooling. Damage, later alterations by others and movement beyond what the joint was designed for sit outside it.
- Place
- Keills (PA46)
- Wider area
- Argyll and Bute
- Guarantee
- 12 months on our workmanship
- Quotes
- Quoted before any work starts
- Phone
- 01277 525 020
- Updated
- 3 November 2026
Diagnose, treat, sign off
Diagnose, treat, sign off: that’s the shape of every visit. We inspect the joints and confirm what’s in scope, then we prepare and seal each joint with the specified product, and we finish with a walk round so the work can be signed off. For work around Keills, we aim for one trip, which is why we ask for photographs and a full list first. Outside work also needs a suitable weather window.
- First we look at the scope on site or from drawings.
- A fixed quote sets out scope, products and phasing.
- Paperwork is agreed and applicators are inducted on site.
- Sealing follows the programme as areas are released.
- Any frame gaps or issues outside our scope are flagged to the site team.
- The package is closed out, snags cleared and backed by our 12-month guarantee.
Preparing the site
- Send your site hours and access windows
- Move anything stored against the joints
- Send asbestos survey details if the building is pre-2000
Request a quote
Need a figure for a tender or a budget? Send the scope and any drawings, and we’ll return a fixed quote you can plan around. For a chat about it beforehand, speak to us on 01277 525 020 or email the details over.
Related advice
Facades, frames and programmes in Keills
The sea is no more than about 1 mile from Keills. Coastal exposure means perimeter and cladding joints work harder than on an inland job, so we check the specified product suits the exposure before the first bead. Keills is in the west of Scotland, the wetter side of the country. We keep internal mastic in hand so wet days aren’t lost.
For a contractor at a hotel such as Port Askaig Hotel, which lies north-east of Keills, the mastic often has to be finished before a reopening date.
Keills is in Argyll and Bute. Businesses, contractors and managing agents in Keills can call on us for mastic packages, as part of our coverage of Argyll and Bute. Keills is one of 124 places in Argyll and Bute on our list. There’s a separate page for Glasgow, roughly 72 miles from Keills.
Anyone looking for construction mastic in PA46 gets the same process as the rest of our area: send details, get a quote, we seal, guaranteed. If your building is just outside Keills, we cover Port Askaig (1 mile north-east), Bunnahabhain (3 miles north), Craighouse (7 miles east), Bowmore (8 miles south-west) and Port Charlotte (12 miles south-west). Where a site is remote or on an island, we plan travel and materials carefully.
What’s near Keills
A little further out are Finlaggan Castle (1.8 miles west). For a walk, there’s Loch Ballygrant and Beinn Dubh.
How the job changes by surface
External facade and movement joints
Movement joints in the facade are sealed with a product suited to the expected movement. We set the depth with backing rod to avoid three-sided adhesion.
Fire-rated sealant where specified
Fire-rated sealant forms part of some packages, installed to the product’s tested detail where it is specified. Fire stopping design belongs to the designer and building control and we install what’s specified.
Work for main contractors and building owners
Agents, factors and owners’ representatives all follow the same route: send the details, accept a fixed quote, and we carry out and guarantee the work. Keys, access and contacts can be agreed in advance.
CHAS accredited and a Constructionline member, we make supplier vetting simple. Our insurance certificate can be sent along with the quote.
What we are called out for in Keills
A joint without backing rod or bond-breaker often fails early. Bonded to the base of the joint and both sides, sealant can’t stretch evenly, so depth is controlled with backing rod or bond-breaker tape.
Typical triggers for a call:
- Frame gaps too wide for sealant alone
- External joints sealed in damp or cold conditions that are now failing
- Mastic snags holding up handover
- Old sealant on a refurbishment that needs stripping before new work
Sites around Keills get mastic sealed to the drawings and the programme, nothing improvised.
Comparing quotes
- The named product and why it was chosen
- Their approach to joint depth and backing
- Health and safety accreditation such as CHAS
- Whether their applicators hold CSCS cards
FAQs: Keills
Does a coastal location like Keills affect which sealant is used?
It can, yes: buildings near the sea take more wind-driven rain, and salt in the air nearer the shore. We choose the product for the exposure, prime where the manufacturer requires it and size the joint for its movement.
Can you keep pace with our programme in Keills?
Yes, we work to the programme and the sequence the site sets. Tell us which site documents you need, such as RAMS, our insurance certificate or CSCS details, and they’re confirmed with the quote.
Do you use the sealant named in the specification?
We work to the specification and the manufacturer’s installation guidance. Preparation, backing and depth follow the product guidance.
How long before the joints can be used?
We’ll confirm how long the chosen product needs to cure.
Are you fully insured?
Yes. We’re fully insured, and the certificate can go with your quote.
Do you do internal caulk as well as external mastic?
Window and door perimeters, internal decorators’ caulk where specified, sanitary joints, kitchens, movement joints and snagging. We price to the specification and drawings.
Can you clear a mastic snag list before handover?
Yes, we can. Send the snag list or photos and we will price it, with the work timed to your handover date.
Should maintenance staff do it?
Some joints are best left to specialists: for example fire-rated seals that must match a tested detail, trafficked floor joints and external movement joints. A poor seal in places like these tends to cost more to put right later.
The visible bead is only part of the job. Correct depth, the right primer and a sealant matched to the movement are easy to get wrong without experience.
Leave it or put it right?
A cheaper sealant can look like an easy saving on a large package. The saving is small next to the cost of callbacks and defects. Where an alternative is genuinely suitable, we’ll say so. For buildings near Keills, dealing with all the failing joints at once saves return trips. Send photos and we will quote for everything together.
The price depends on how many linear metres there are, how much old material needs removing and how the joints are reached. Call for a quote when you are ready.
Why choose Mastic Doctor in Keills
- Fixed quotes based on photos, drawings or a visit
- CHAS accredited
- Colour options checked against the specified product
- Failed material removed, not covered up
See our cost guide or how we’re accredited.