Mastic Sealing in Bac
Mastic sealing for building owners, managing agents and housing associations in Bac and across Na h-Eileanan Siar. CHAS accredited, Constructionline member, with a 12-month guarantee on workmanship.
- Leaks at window and door perimeters
- Estate-wide sealant that is simply worn out
- Communal area joints that look neglected
Need mastic sealing in Bac?
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
About our mastic sealing in Bac
Owners and agents usually inherit a building’s mastic rather than choose it and it slowly wears out: window perimeters, door frames, external joints and communal junctions all rely on it. Once it cracks, hardens or comes away, draughts and water find a way in along with complaints. We work on window and door perimeters on blocks, communal entrances and stairwells and communal kitchens and washrooms, and the usual reasons a site gets in touch are complaints coming in block by block and movement joints with sealant missing. Most enquiries from Bac start with one failed joint and grow into a wider look at the building: we check the joints around it and give you an honest view of what needs doing now and what can wait.
In smaller Scottish places like Bac, managed property is mostly small blocks, sheltered housing, hotels and community buildings. Exposed walls take Scottish weather hard, and frame mastic shows it first.
Our 12-month guarantee is about workmanship, not wear and tear. How long a sealant joint lasts depends on movement, exposure, cleaning and use, so we spell out the cover before we begin.
- Where
- Bac (HS2)
- Region
- Na h-Eileanan Siar
- Cover
- 12 months on every job
- Price
- Fixed quote, scope in writing
- Call
- 01277 525 020
- Last updated
- 3 November 2026
How a job runs
Where the site stays busy, the work is phased so only one area is out of use at a time. Each section is protected, cleaned back and sealed before we move to the next. For a building near Bac, directions, keys and a contact on the day are worth sorting early. We’ll confirm the plan with the fixed quote.
- First comes a look at the joints and, for older buildings, the asbestos records.
- The products and programme are set out in a fixed quote.
- We strip out the old sealant.
- The joints are prepared and resealed with the right product.
- We finish each building before moving to the next.
Preparing the site
- Tell us your opening times and when work is allowed
- Confirm the product named in the specification
- Tell us which areas need to stay in use
Request a quote
Let us know the site, the scope and your timescale, and we will put a fixed quote together. To get it moving, call 01277 525 020 or email the details over.
Read more
Why deal with it now?
Mixed repairs by different contractors leave a patchwork of products and colours. Resealing a whole building gives a consistent finish and one 12-month guarantee. For buildings near Bac, dealing with all the failing joints at once saves return trips. Send photos and we’ll quote for everything together.
We don’t publish prices, because the scope varies so much from one building to the next. For a fixed figure, call for a quote.
Why appoint us
- Matching to RAL references, product permitting
- Work carried out by CSCS-carded applicators
- Joints cleaned back to sound surfaces
- Colour agreed before work starts
Read what affects the cost and how we’re accredited.
When to bring in a specialist
What you see is the finished bead, but most of the work is hidden. Correct depth, the right primer and a sealant matched to the movement are where general trades tend to cut corners.
General builders and handymen seal joints, but it isn’t their main trade. A specialist brings correct preparation, depth control with backing rod and a product suited to that particular joint, which is what makes a joint last.
How the job changes by surface
Commercial and mixed-use buildings
Landlords with commercial portfolios have shopfronts, office entrances and external joints to look after. We work across portfolios on a planned basis.
Communal areas
Entrance doors, screens and corridor junctions in communal areas all have sealant joints. Fresh joints make shared areas look looked after.
Other services in Bac
Planned mastic for Bac portfolios
The sea is no more than about 1 mile from Bac. Sea-facing elevations take driven rain and salt, and their mastic shows it before the sheltered sides do, and they deserve more regular inspection. Bac is on Scotland’s wetter western side. The most exposed elevations need checking most often. Outside mastic goes on in dry spells, with some flexibility in the programme.
Owners near Bac can renew frame and external mastic block by block on one programme. Near Bac, we review each elevation first so the quote covers what actually needs doing.
Bac is in Na h-Eileanan Siar. Anywhere in HS2, the process is the same: details in, fixed quote out, then sealing and a 12-month guarantee. Our Na h-Eileanan Siar coverage takes in 87 places.
Commercial sites across HS2 are covered. Among the streets we cover are Broadbay View, Rathad na Sgoile and Rathad an T-Seann Sgoil, and sites on any of them can send details for a fixed quote. Nearby places we also cover include Upper Coll (2 miles south-west), Aird Tong (2 miles south-west), Tong (3 miles south-west), Steinis (4 miles south-west) and Newmarket (4 miles south-west) for mastic joints. Bac is one of the busier places in Na h-Eileanan Siar, and its commercial and public buildings are all within our area. Island and remote sites need extra planning, with travel, ferry crossings where needed and weather to allow for, so mention the location when you call 01277 525 020 or email drawings and photos.
Near you in Bac
Nearby you will also find Western Isles Hospital (4.9 miles south-west). Green spaces nearby include Loch Langavat.
When something else is needed
We seal joints; we don’t mend everything behind them. Sealant alone won’t deal with:
- Misted or failed double-glazed units
- Leaks from above rather than through a joint
- Frames that are rotten, warped or broken
If in doubt, call 01277 525 020 or email the details over and we will say what we think before you book.
Surfaces we seal
- Shopfronts below residential blocks
- Communal kitchens and washrooms
- External wall and movement joints
- Communal entrances and stairwells
- Balcony and threshold joints
- Window and door perimeters on blocks
Quoting for work in Bac
There’s no standard rate for sealant work, since sites vary so much. What we take into account:
- Location, for remote and island sites
- Phasing around occupants
- The total length or number of joints
- The product specified
The specified product makes a difference, as does the preparation each joint needs, from cutting out to priming and backing rod. Access, phasing and site rules also count.
Before you send an enquiry
There’s no need for a formal survey. These details are enough to start:
- Anything awkward about access or site hours
- Whether the building will be occupied during the work
- The product your specification calls for
- Whether an asbestos survey exists
The quickest route to a quote is a few photographs and the site postcode. Send them through the quote form, or phone 01277 525 020 or email drawings and photos if you’d rather talk the job through.
Questions we are asked in Bac
Can you take on a job in Bac, on the island?
Yes. Our area covers all of Scotland, cities, towns and islands alike, and that includes island locations such as Bac. Ferry times and the weather set the plan, so we ask for photographs and a full list first.
Our building in Bac is near the coast: does that change the sealant?
It can. Coastal exposure works external joints harder than inland weather. We check the specified product suits the exposure and pay close attention to preparation.
Can you send RAMS and CSCS details before starting?
We are CHAS accredited, a Constructionline member and carry public liability insurance. Tell us what site paperwork you need (RAMS, insurance certificate, CSCS details) and we will confirm with the quote.
How do you reach windows on upper floors?
We talk through access for each building when we quote. Tell us the building height and any access already in place, and we’ll tell you how we’d approach it.
Can people stay in the building while you reseal?
Occupiers stay in the building throughout. If any flats or units need access, we’ll tell you in advance so you can arrange it with occupiers.
Who decides which product is used?
A specification, where there is one, decides it. Without one, the joint decides: how much it moves, what it bonds to and whether it’s wet, trafficked or fire-rated.
Can you take on resealing for a block portfolio?
Yes, block and estate work is a core part of what we do. Buildings are scheduled in turn so you can plan around it.