An t-Ob mastic sealing
Mastic sealing for building owners, managing agents and housing associations across An t-Ob, by CSCS-carded applicators. Fully insured and CHAS accredited.
- Estate-wide sealant that is simply worn out
- Water getting in round frames after rain
- Brittle perimeter mastic across a building
Mastic sealing near An t-Ob
Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.
Looking after the joints
Once the work is signed off, these steps help:
- Plan resealing building by building rather than complaint by complaint
- Make mastic part of routine maintenance checks
- Log resealing dates block by block
- Mention RAMS, insurance or CSCS requirements up front
Log the date and extent of the resealing for each block. That makes future programmes easier to plan and gives you a history.
The longer failed joints are left, the more likely the substrate edges break up. Once that happens, repairs come before resealing.
Mastic sealing for commercial buildings in An t-Ob
Different joints need different sealants. Window perimeters and external joints often take a low-modulus neutral-cure silicone, while hybrid polymer sealants grip many materials and are often paintable. We’ll confirm the colours available for the specified product. If you have repeated reactive repairs to the same buildings and failed external movement joints, we can put it right, whatever the surface. Searching for sealant specialists in An t-Ob? Mastic Doctor has worked for contractors, FMs and building owners since 2005, with CSCS-carded applicators.
Around smaller places such as An t-Ob, buildings managed by landlords and associations are often small groups of flats, sheltered housing and halls. Exposed walls take Scottish weather hard, and frame mastic shows it first.
Guaranteed is the last step of every job. Our workmanship is backed for 12 months, and we explain exactly what that covers when we quote.
- Where
- An t-Ob (HS5)
- Region
- Na h-Eileanan Siar
- Cover
- 12 months on our workmanship
- Quote
- Quoted before any work starts
- Call
- 01277 525 020
- Last updated
- 3 November 2026
On site: what to expect
Working in a building that stays open takes some planning. We sign and contain the area we are in, with routes through the building left open and work section by section so the rest of the building stays in use. For work around An t-Ob, 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.
- We check the asbestos register for older buildings and look at the joints.
- The products and programme are set out in a fixed quote.
- We strip out the old sealant.
- Joint faces are cleaned, backed and resealed.
- Buildings are completed in turn.
Getting the site ready
- Confirm the product named in the specification
- Let building users know which areas are affected
- Clear stock, furniture or equipment away from the joints
Quotes
The quickest route to a quote is a few photographs and the site postcode. Upload them with the quote form, or speak to us on 01277 525 020 or send photos by email if you’d rather talk the job through.
Advice
Why deal with it now?
Draughts round window perimeters cost occupiers comfort and the windows usually get the blame. Resealing the perimeters is often the simpler fix where the frames themselves are sound. Exposed buildings in Scotland take a lot of weather, and for a smaller place like An t-Ob, a repair visit takes planning, so it’s better to act early.
Larger quantities, tricky access or phasing all shape the price. So do site requirements such as inductions and permits.
What you get with us
- 12 months’ guarantee on every job
- Colour agreed before work starts
- One phone line for London, the South East and Scotland
- A Constructionline member, so easy to vet
Read how commercial sealant jobs are priced and how we’re accredited.
Planned mastic for An t-Ob portfolios
An t-Ob sits close to the coast, within about 1 mile. Blocks and commercial buildings facing the sea take the most weather on their window perimeters and external joints, and they deserve more regular inspection. Work on An t-Ob has to fit the ferry timetable and the forecast. Send photographs and addresses so every building can be covered on as few trips as possible.
Owners near An t-Ob can renew frame and external mastic block by block on one programme. Near An t-Ob, we review each elevation first so the quote covers what actually needs doing.
An t-Ob is in Na h-Eileanan Siar. An t-Ob sits inside our coverage and the rest of Na h-Eileanan Siar, with the same fixed quotes and 12-month guarantee as everywhere else. 87 places across Na h-Eileanan Siar fall within our area, including An t-Ob.
If you need mastic sealing in HS5, the process matches everywhere else we work: send details, get a quote, we seal, guaranteed. Among the streets we cover are Pier Road, Ferry Road and Strond Road, and sites on any of them can send details for a fixed quote. Just outside An t-Ob, we also work in Leverburgh (1 mile south), Ruisgarry (7 miles south-west), Clachan Shannda (10 miles south-west), Direcleit (11 miles north-east) and Tarbert (12 miles north-east). An t-Ob 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 give the site location in your enquiry.
What’s near An t-Ob
Other landmarks nearby include Seallam! Visitor Centre (2.3 miles north-west). Green spaces nearby include Loch Steisevat and Roineabhal.
Site staff or a sealant specialist?
Site maintenance staff can often handle a short internal joint. The usual problems come from preparation: sealing over old material, sealing onto damp or dusty surfaces, or a product that can’t take the movement.
There’s also the paperwork. Many sites expect CSCS cards, RAMS and proof of insurance, and our CSCS-carded applicators are used to working under those rules.
Questions about An t-Ob
Does a coastal location like An t-Ob 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. Product choice and preparation matter more, and sea-facing elevations are worth inspecting more often.
Can you quote for mastic across several buildings in and around An t-Ob?
Yes, we quote for single buildings and for programmes across several blocks. Send the addresses and photos and we will give a fixed quote.
Is An t-Ob in your area?
Yes. We take on work across An t-Ob, with one number for every area we cover.
Who decides which product is used?
If the job is specified, we follow the specification. Otherwise, we recommend a product to suit the joint’s movement, the substrate and the conditions, following the manufacturer’s guidance.
How do you handle work on occupied blocks?
The work is planned around occupiers. We agree the programme so you can notify occupiers, and entrances stay in use.
How long does a job like this take?
That varies with the scale of the job, but the work typically takes a few days for most blocks, with larger programmes scheduled building by building. Larger or phased jobs take longer, and we will give you a timescale with the quote.
Can you work to our specification?
Yes. The specification and the manufacturer’s installation guidance are what we work to, and we raise anything unclear before work begins.
What we can’t put right
Before quoting, we check that sealant is the right answer. It isn’t the answer for:
- Frames that are rotten, warped or broken
- Roof leaks, gutters or failed flashings that aren’t sealant joints
- Glazing that needs replacing
Not sure which it is? You can speak to us on 01277 525 020 or email drawings and photos and we’ll tell you honestly.
What we seal
- Communal entrances and stairwells
- Communal kitchens and washrooms
- Balcony and threshold joints
- External wall and movement joints
- Shopfronts below residential blocks
- Window and door perimeters on blocks
Also near An t-Ob
Other services in An t-Ob
What affects the price in An t-Ob
Before we quote, we look at:
- The total length or number of joints
- How much existing material needs removing
- Location, for remote and island sites
- Whether the work must be split into stages
We don’t publish prices, since every building and every scope is different. Call for a quote and we will price your job on its own details.
Before you send an enquiry
However big the job, these details speed things up:
- Whether an asbestos survey exists
- The site address and postcode
- Access details, including height
- Whether the building will be occupied during the work
Photos, drawings or a schedule of the joints are often enough for a fixed quote. If the job needs a look first, we’ll arrange a site visit.