Gunnista mastic sealing
Mastic sealing for building owners, managing agents and housing associations throughout Gunnista and nearby, by CSCS-carded applicators. CHAS accredited and fully insured.
- Patchy repairs in mismatched sealant
- Worn sealant at communal door frames
- Failed external movement joints
Mastic sealing for businesses in Gunnista
Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.
Gunnista: questions and answers
Does your area include sites such as North Ness Business Park, near Gunnista?
Yes. Estates, retail parks and business parks around Gunnista, North Ness Business Park among them, are all within reach. Photos and a short description are enough for a first look.
Does the sea air around Gunnista change the choice of sealant?
It can. Coastal exposure works external joints harder than inland weather. We choose the product for the exposure, prime where the manufacturer requires it and size the joint for its movement.
Will you quote for a small job?
Small jobs are welcome alongside larger packages. Send details for a fixed quote.
How long does a job like this take?
That varies with the scale of the job, though a typical visit usually takes a few days for most blocks, with larger programmes scheduled building by building. Larger or phased jobs take longer, and we’ll give you a timescale with the quote.
Do you work in Gunnista?
Yes. Gunnista is in our area. For a quote, speak to us on 01277 525 020 or send photos by email.
Will you come and look before quoting?
Many jobs can be quoted from photographs, drawings or a joint schedule. Where they aren’t, we arrange a site visit.
What guarantee do you give on resealing?
Every building we reseal has a 12-month guarantee. It applies to our workmanship rather than damage or problems with the frames.
About our mastic sealing in Gunnista
Different joints need different sealants. Window perimeters and external joints often take a low-modulus neutral-cure silicone, and MS polymer sealants stick well to many substrates and often take paint, and colours are confirmed for whichever product is used. If you have a mix of products and colours from past repairs and failed external movement joints, we can help, whatever the surface. A specialist sealant contractor works differently from a general builder: on jobs in Gunnista, preparation and product choice get the time they need.
Around Gunnista, outside mastic waits for dry weather and the right temperature. We agree a window with some flexibility.
Our 12-month guarantee is about workmanship, not wear and tear. Sealant wears with time, and movement, weather, cleaning and use decide how fast, so we spell out the cover before we begin.
- Location
- Gunnista (ZE2)
- Wider area
- Shetland Islands
- Cover
- 12 months on our workmanship
- Price
- A fixed quote before we start
- Phone
- 01277 525 020
- Page updated
- 3 November 2026
How the quote is worked out
Before we quote, we look at:
- Travel to remote or island sites
- How much there is to seal
- Phasing around occupants
- Access and working height
There’s no price list, because the scope varies so much from one building to the next. Call for a quote.
What to include in your enquiry
It doesn’t need to be a full survey. A few details are enough to get going:
- The asbestos register, for older buildings
- When you need the work done
- The postcode of the building
- The type of building and who uses it
If there’s a specification, drawings or a tender package, send it with your enquiry, and we’ll price the work to it. For smaller jobs, photos and a description will do.
What happens if it’s left?
Open external joints let water into walls and around frames. Damp patches, stained plaster and decorating claims can follow, which is harder to deal with than resealing. Around smaller places like Gunnista, halls, stores and seasonal buildings may not be checked often, giving water time to get in. Resealing early avoids that.
Access often affects the price as much as the sealing: joints within easy reach take less time than ones that need access equipment. Mention the access as part of your enquiry.
Why appoint us
- Fixed quotes based on photographs, drawings or a visit
- Failed material removed, not covered up
- Workmanship guaranteed for 12 months
- Health and safety: CHAS accredited
Read our cost guide or how we’re accredited.
Maintenance after handover
Every sealant joint needs some looking after, and how long they last depends on how they’re treated. We suggest:
- Check the asbestos register before any old mastic is disturbed
- Mention RAMS, insurance or CSCS requirements up front
- Reduce knocks to communal area joints
- Start inspections with the most exposed faces
Encourage occupiers to report water or draughts at frames. A quick report keeps a small repair small.
Joints on a building age together, so it pays to look at the whole elevation. A planned reseal saves repeated visits.
Planned mastic for Gunnista portfolios
The sea is no more than about 1 mile from Gunnista. Blocks and commercial buildings facing the sea take the most weather on their window perimeters and external joints, and they deserve more regular inspection. Island jobs, Gunnista among them, are planned around the ferry and the forecast. Send photos and addresses so every building can be covered on as few trips as possible.
Trustees of buildings like St Ola's Church and burial-ground can bring frame and external mastic into a planned maintenance list. If you own or manage units on a site such as North Ness Business Park (1.9 miles south-west of Gunnista), failed mastic on frames, door surrounds and external joints can be dealt with unit by unit.
Gunnista is in the Shetland Islands. Businesses, contractors and managing agents in Gunnista can call on us for mastic joints, as part of our coverage of the Shetland Islands. Our the Shetland Islands coverage takes in 63 places, large and small.
Work on mastic joints is covered throughout ZE2, whatever the building. Close to Gunnista, our area also takes in Heogan (1 mile west), Gremista (2 miles west), Grindiscol (2 miles south), Lerwick (2 miles south-west) and Sound (3 miles south-west). Where a site is remote or on an island, travel and materials need planning ahead, so the full address helps from the start.
Landmarks near Gunnista
A little further out are Shetland Museum (2 miles south-west) and Montfield Hospital (2.2 miles south-west). Not far away are Loch of Aith.
On site: what to expect
Tell us your site hours and access windows and we will plan around them. While we are working, the area stays contained and tidy, and we check in with your contact before moving on to each new area. Where we can, we combine work around Gunnista with other jobs nearby, to make the most of each trip. Let us know if your dates have any give.
- We check the asbestos register for older buildings and look at the joints.
- A fixed quote covers the joints, products and order of work.
- Failed mastic is removed completely.
- The joints are prepared and resealed with the right product.
- Buildings are completed in turn.
What we need from you
- Point out parking and an unloading spot
- Warn occupants and staff about the work
- Share the asbestos register for older buildings
Getting a fixed quote
The quickest route to a quote is a few photos and the site postcode. Upload them with the quote form, or call the office on 01277 525 020 or email a schedule or drawings to discuss it first.
Read more
Building owners, agents and FMs in Gunnista
FMs need a contractor who is easy to get on site. Tell us what site paperwork you need, such as RAMS, an insurance certificate or CSCS details, and we’ll confirm with the quote.
Hotels, schools, healthcare sites, offices and retail units book us directly too. We plan around the way the building is used, so guests, pupils, patients or staff are disturbed as little as possible.
More services for Gunnista
Do you need mastic sealing in Gunnista?
Many failed joints were sealed without backing rod so the mastic is bonded on three sides. It can’t stretch properly and splits as the building moves.
Look out for the following:
- Draught complaints from residents or tenants
- The same joint failures repeated across a portfolio
- A mix of products and colours from past repairs
- Worn sealant at communal door frames
Site managers at schools like Anderson High School can fit frame mastic into the summer works.
What your quote should include
- Their public liability cover
- Their pre-qualification and accreditations
- Is depth set with backing rod, or bond-breaker tape in shallow joints?
- Which product they’ll use, and why it suits the joint