Hampshire · England
Gutter Sealing in Dean
Professional gutter sealing in and around Dean, with every bit of old sealant taken out first and a one-year guarantee.
- Trim joints where the sealant has failed
- Open joints in fascias and soffits
- Dripping gutter ends
Aftercare tips
Aftercare is simple:
- Get a dropping gutter looked at quickly
- Look for streaks or damp on the wall below gutters
- Keep the gutters clear of debris
- Keep downpipes clear
If a gutter starts to sag, get the brackets looked at. Movement will pull the joints open again.
Split sealant on fascias and trims lets water in behind. Sealing it early keeps the boards behind dry and the wall below.
About our gutter sealing in Dean
A lot of gutter leaks come down to one tired joint. The joint is cleaned, dried and resealed with a sealant made for guttering. If the gutter is broken or sagging, we will tell you. If you have quick sealant fixes on gutters that didn’t last and internal damp traced to a gutter joint, we can help.
Somewhere as small as Dean, homes and farm buildings often face open ground, so walls and rooflines take the full force of wind and rain. Gutter joints and wall joints there need a sealant that can flex and stay put.
We stand behind the work with a 12-month guarantee, so you are not left on your own once the job is done.
- Place
- Dean (SO32)
- Wider area
- Hampshire
- Cover
- One year on every job
- Quotes
- A clear quote up front
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026

Common problems we fix in Dean
Sagging sections pull joints apart. Resealing a sagging joint won’t last, so the gutter needs refixing first.
If you can see any of these, it’s time to have the joints looked at:
- Fascia boards with gaps between them
- Internal damp traced to a gutter joint
- Dripping gutter ends
- Water running down the wall below the gutter
If you live in an older home near Church of St Peter, an extension built onto an older house moves differently, and the joint between them takes the strain.
What your quote should include
- What guarantee comes with the work
- Is VAT in the price?
- Whether the sealant suits the joint
- Whether you can choose the colour
Also in Dean
Gutter sealing in Dean: local notes
Rainfall in the South East is lower than in much of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
Letting a property close to Botley station? Then a dripping gutter joint or loose fascia trim is easy to miss until damp shows inside. For site and facilities teams at buildings such as Bishops Waltham Infant School, larger buildings have long runs of movement joint that eventually need resealing.
Dean is about 6 miles north-east of Hedge End, in Hampshire. If you need gutter sealing in Dean, it’s easy to get a quote: please phone 0345 464 0079 or send us an email. We cover Hampshire from our Crawley base, Dean included. Dean is one of 683 towns and villages in Hampshire we cover. There’s also a page for Southampton, about 9 miles away.
Here we cover the SO32 postcode area for gutter sealing. That includes homes and businesses on Dean Lane, Little Ashton Lane and Limekiln Lane and the roads around them. Neighbouring places we cover for gutter sealing include The Hangers (1 mile east), Upper Swanmore (2 miles south-east), Swanmore (2 miles south), Hill Grove (2 miles south-east) and Droxford (3 miles east). Larger places within reach include Winchester (8 miles north-west), Gosport (12 miles south), Havant (12 miles south-east), Eastleigh (6 miles west), Fareham (8 miles south) and Horndean (9 miles south-east).
Around Dean
In Dean, that means homes and buildings near Swanmore College of Technology. Dean’s nearest station is Botley station, about 4.6 miles south-west. Nearby you will also find Bishop's Waltham Museum (1.4 miles south-west). For a walk, there’s Bishops Waltham Branch LNR and Beacon Hill.
How we quote for gutter sealing
We do not publish a price list. The quote depends on:
- When we can work, for business premises
- Access and height
- Whether there’s mould to deal with
- Whether old sealant or filler has to be cut out
What it costs depends on the amount of work, how hard the old material is to remove and access to the work. We give a clear quote before we start.
Asking for a quote
What to tell us when you ask for a quote:
- The rough size of the job
- The type of property
- The address or postcode of the job
- Photos by email, if that is easy
We do not publish a price list. Instead, your job gets its own clear quote. To get started, call 0345 464 0079 or drop us an email.
How the visit works
You do not need to clear the whole room or building, just the space around the work. Everything nearby is protected, and the job takes an hour or two for a few joints, longer for a full run for a typical job. For a village or hamlet like Dean, the journey is planned in advance: 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.
- First we trace the drip and check the gutter isn’t damaged.
- The old sealant and dirt are cleaned out of the joint.
- The joint is dried before sealing.
- We seal the joint with a sealant made for gutters.
- We check the run and clear debris near the joints.
Getting ready for the visit
- On commercial sites, let us know about site rules
- Keep pets and children clear of the area while we work
- Move anything stored near the joints
Get a quote
For gutter sealing in Dean, ring 0345 464 0079 or send us an email. A short description of the job and where it is helps us quote, and we’ll agree the price before any work begins.
Related advice
When something else is needed
A few problems are outside what sealant work can do:
- Problems with the roof covering
- Brackets that have snapped or loosened
- Boards that have decayed or split
If in doubt, phone 0345 464 0079 or email us and we will say what we think before you book.
What we seal
- uPVC fascias
- Roofline trims
- Soffit joints
- Garage door frames
- Gutter joints
- Gutter end caps
Leave it or put it right?
Sealant will not clear a blocked downpipe. We look at what’s really happening and tell you if something else is needed. Around Dean, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.
Some things make a job bigger or smaller: the old material and how easily it comes out, any mould to treat, and whether we need extra access for height. We take all of that into account in your quote.
Why choose Mr Mastic in Dean
- More than 20 years in sealant work
- Anti-fungal silicone where joints get wet
- Fully insured
- A sealant colour to suit the surroundings
Your questions about gutter sealing in Dean
Do you work for landlords with property near Botley station?
Yes. We work for letting agents and landlords as well as homeowners, and several properties can go on one quote. You can call 0345 464 0079 or drop us an email with the details for a clear quote.
Can you do gutter sealing in Dean?
Yes. Our work covers London and the South East, and Dean is part of that. Just ring 0345 464 0079 or email us with a few details of the job.
Will you clear out my gutters?
We clear debris around the joints we’re sealing. A full clean of the gutters isn’t part of it.
Can you seal fascia and soffit joints?
Yes. Open joints along uPVC fascias and soffits can be sealed in a colour to suit.
Can you do several jobs on one visit?
Yes. More than one area can go on one quote.
What guarantee comes with the job?
Every job comes with our one-year guarantee.
Are you fully insured?
Yes, we’re fully insured for every job we do.
Can you seal over the old sealant?
No. Fresh sealant does not stick to old sealant, and it traps any mould or water underneath. We remove it all first.
For landlords and businesses
Housing providers, facilities teams and property managers book us too. We can quote a run of properties together, and we are fully insured for the work.
Water getting past a failed joint can damage the building, which matters even more when someone else lives there. Resealing at the right time is simple maintenance that we can handle for you.
