Hampshire · England
External Mastic in Nob's Crook
Sealing brickwork movement joints, render, cladding and façade joints for Nob's Crook, backed by a 12-month guarantee. Call for a quick quote.
- Failed seals between different materials
- Old sealant gone brittle and cracked
- Rigid filler in a joint that should flex
Work for landlords, hotels and businesses
Landlords and letting agents in Nob's Crook can book us as well as homeowners. Sealant work between tenants is a simple way to keep a property in good order.
Failed sealant is one of the commonest items on a check-out report. Several properties can go on one quote.
External mastic for homes and businesses in Nob's Crook
Many failed façade joints only get noticed once there’s a stain or a damp patch inside. We look over the joints, agree the ones to renew and reseal with a flexible, weatherproof product in a matching colour. We work on façade panels, render & cladding joints and brickwork movement joints, and the jobs we see most are sealant that has lost its bond to the brick or render and plants rooting in failed movement joints.
Outside joints can only be sealed when they’re dry, so work in Nob's Crook is booked around the forecast. Tell us about access to all sides of the building, including outbuildings and garages.
All of our work is guaranteed for twelve months.
- Place
- Nob's Crook (SO21)
- Wider area
- Hampshire
- Guarantee
- One year on every job
- Price
- Quoted before any work starts
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
Why deal with it now?
Water gets in through a failed movement joint. Resealing early keeps the job to the joint itself, rather than the wall around it. In a small place like Nob's Crook, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.
What it costs depends on how much there is to do, how much old material has to come out and access to the work. We give a clear quote before work begins, so you know where you stand.
Why us?
- A choice of colours where the product allows
- Experience in homes, commercial sites and hotels
- 4.9 on Google from 180+ five-star reviews
- An ARBOMaster approved applicator
Read our cost guide or what customers say.
Different surfaces, different methods
Concrete and blockwork
Big joints in concrete need careful depth control. Backing rod sized to the joint sets it.
Render joints
Water behind render can lead to blown patches. A sound joint keeps the render dry behind.
Also near Nob's Crook
Other services in Nob's Crook
Nob's Crook buildings and the weather
Historic houses like South Stoneham House (about 4.6 miles south-west) are a reminder that the area around Nob's Crook has older buildings as well as new. In older buildings, older walls and rooflines need a sealant that moves with them and suits the material. The South East is one of the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
Managing a site like Colden Common Primary School? Then movement joints, cladding joints and gutters on larger buildings need the same care as a house’s. If you live in an older home near Church of the Holy Trinity, the joints between older walls, newer extensions and the roofline need a sealant that can move. Letting a property close to Eastleigh station? Then outside joints that have cracked can let damp into a rental, so check them between lets.
Nob's Crook is about 2 miles north-east of Eastleigh, in Hampshire. Homes, rented property, offices and hotels in Nob's Crook is covered for external mastic. Every job comes with our 12-month guarantee. Nob's Crook is one of 683 towns and villages in Hampshire where we work for external mastic. Our Southampton page covers work nearby.
Here we cover the SO21 postcode area for external mastic. Other places close to Nob's Crook include Fisher's Pond (1 mile south-east), Colden Common (1 mile north-west), Brambridge (1 mile north-west), Lord's Wood (1 mile west) and Crowdhill (1 mile south-east). We also work in nearby towns such as Winchester (5 miles north), Gosport (15 miles south-east), Fareham (11 miles south-east), Horndean (14 miles south-east), Totton (10 miles south-west) and Chandler's Ford (3 miles west).
What’s near Nob's Crook
Locally, jobs take us to homes and businesses close to Wyvern Technology College and The Fox & Hounds pub. The nearest railway station is Eastleigh station, roughly 2.2 miles south-west of the centre. Nearby you’ll also find Wolvesey Castle (4.8 miles north) and Moorgreen Hospital (4.2 miles south). Not far away are Twyford Down and Shawford Down.
When something else is needed
We’ll always be straight with you, so here’s what new sealant will not do:
- Subsidence or other structural problems
- Rising or penetrating damp from elsewhere in the wall
- Cracking across the wall rather than at a joint
If in doubt, ring 0345 464 0079 or drop us an email and we’ll say what we think before you book.
Where we work in Nob's Crook
- Brickwork movement joints
- Copings & trims
- Façade panels
- Render & cladding joints
- Joints between brick and frames
- Concrete & block
How we quote for external mastic
Jobs vary more than people expect. What affects the quote:
- Whether there’s mould to deal with
- Working hours on commercial sites
- Whether old sealant or filler has to be cut out
- Whether the work is at height
A failed joint rarely gets cheaper to fix by waiting. If you are not sure whether it needs doing, phone 0345 464 0079 or send us an email and we will give you an honest view and a quote.
Helping us quote
Before you ask for a quote, have a think about:
- Pictures of the joints, sent by email
- Roughly how big the job is
- The type of property
- The problem you’ve noticed
Every job is quoted individually, so start by telling us what you need. Simply phone 0345 464 0079 or email us and describe the job, and pictures are welcome.
What happens on the day
When we get to you, we compare the joints with what we discussed. If anything is different, we explain it before carrying on. Most jobs then take a few hours to a few days, depending on the length of joint and the access. Somewhere like Nob's Crook needs a little journey planning: tell us about narrow lanes, gates, long drives and where we can park. We bring what the job needs, so it can be finished in one trip where possible.
- We start by checking each joint, agreeing the ones to redo and how we will reach them.
- The old mastic and anything lodged in the joint is removed.
- Both sides are cleaned back to sound material and primed if needed.
- Closed-cell backing rod is fitted to set the depth and stop three-sided bonding.
- A flexible exterior sealant is applied and tooled in a colour to suit the wall.
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
- Let us know about parking restrictions
Getting a quote
There’s no standard price list. Instead, we give you a clear price for your job. To arrange one, phone 0345 464 0079 or email us.
Advice
How to look after the new joints
How long the joints last depends on use and care. Here’s what we suggest:
- Have failed joints looked at early
- Keep movement joints as flexible joints, not mortar
- Avoid pressure-washing directly into sealant joints
- Look over the joints every year, ideally after winter
Keep pressure washers away from the sealant. High-pressure water can lift the edges and let water in behind.
If you can see gaps, plants or bare sections in a joint, have it checked. Earlier resealing means a smaller job and a better result.
Nob's Crook: your questions answered
Will you come out to Nob's Crook?
Yes, we do. Our work covers London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
Is Nob's Crook in your area for external mastic?
Yes, Nob's Crook is within the area we cover. Our work covers London and the South East. You can call 0345 464 0079 or email us and tell us what needs doing.
Can you work on commercial sites?
Yes. We work in offices, washrooms, hotels and other commercial premises, as well as homes. Working times can be discussed when we quote.
Do I have to be there?
For indoor joints, yes, someone needs to let us in. After that, you can carry on with your day.
Will you leave a mess?
Very little: the area around the joints is protected first, and we clear up the old sealant and our materials before we leave.
Do you remove the old sealant?
Yes. We cut out all the old sealant and clean the joint before applying anything new.
Do you have insurance?
Yes. We’re fully insured for domestic and commercial work.
Are you ARBOMaster approved?
Yes. We are ARBOMaster approved, the scheme for applicators of Arbo sealants.