10 DIY Checks Everyone Should Do in March
Our Spring Home MOT: 10 DIY Checks Everyone Should Do in March
Published: Spring 2026 | Read time: 6 mins | Category: Home Maintenance
After a long British winter, your home has taken a battering. Frost, rain, condensation, and damp air leave their marks, and spring is the ideal moment to do a proper check before problems quietly escalate into expensive repairs.
Think of it as your home's annual MOT. A couple of hours now can save you hundreds later. Here are the 10 checks every UK homeowner should carry out this spring, plus the products that make fixing them straightforward.
1. Check Walls and Ceilings for Damp Patches
Winter is peak damp season. Cold walls meeting warm, humid interior air create the perfect conditions for moisture to accumulate and mould to grow. Walk through every room and inspect the top corners of walls, around window frames, behind furniture, and along any external walls.
If you find damp patches or the tell-tale grey-black spots of mould, don't just paint over them treat them properly. Siramico's DampSeal One Coat creates a powerful moisture barrier in a single application, while the Anti-Mould Paint prevents regrowth for years to come.
2. Inspect Your Flat Roof or Garage Roof
Flat roofs are particularly vulnerable after winter. Freeze-thaw cycles expand and contract roofing material, creating micro-cracks that turn into leaks. Get up there safely (or inspect from a first-floor window) and look for blistering, pooled water stains, or cracked felt.
Siramico's Liquid Rubber Roof Coating provides a seamless, elastic membrane that expands and contracts with the surface meaning it won't crack when temperatures shift. One coat, no primer, and protection lasting up to 10 years.
3. Look for Condensation on Windows and Cold Walls
Condensation in winter often goes unnoticed because we keep heating cranked up. Come spring, reduce the heat and you'll start to see where moisture has been collecting. Damp windowsills, streaming glass, and dark patches near radiators are all warning signs.
Anti-Condensation Thermal Paint is the solution most UK homeowners don't know exists. It creates a micro-insulating layer on walls that keeps the surface temperature above the dew point the mechanism that causes condensation in the first place.
4. Walk the Perimeter of Your Property
Head outside and walk slowly around your home, looking at the brickwork and masonry. Key things to look for: white salt deposits (efflorescence), crumbling mortar, staining around windowsills, and damp at ground level. These are all signs that water is finding its way in.
Siramico's HydroLock Masonry Protection Cream provides a deep-penetrating, invisible waterproof barrier for bricks, blocks, stone, and concrete. It's breathable so your walls can still release moisture from inside, but stops rainwater from driving in from outside.
5. Check the Garden for Winter Damage
Fences, sheds, decking, and garden furniture all take a hit over winter. Look for peeling paint, cracked timber, rotting panels, and lifted boards. Spring is the best time to treat and repaint before the summer sun bleaches and dries out unprotected wood.
6. Inspect Your Driveway and Paths
Freeze-thaw action is particularly punishing on tarmac and concrete. Hairline cracks from November can become significant damage by the following autumn if left untreated. Walk your drive and look for cracks, crumbling edges, and faded, degraded tarmac.
7. Check for Mould Behind Furniture
This is the one most people miss. Cold external walls behind large wardrobes and sofas are prime spots for hidden mould growth. Move furniture away from external walls and inspect the plaster. If you find mould, treat with Anti-Mould Paint and ensure the room has adequate ventilation.
8. Test Your Gutters and Downpipes
Gutters full of leaf debris will have been overflowing all winter, potentially directing water down your walls. Clear them out and pour a bucket of water in to check the flow. Look for cracked joints, sagging sections, and water staining on the brickwork below.
9. Check Window and Door Frames
Timber frames expand and contract dramatically over winter. Look for gaps at the edges where sealant has cracked, paint that's peeling, and any signs of rot at the base of frames. These are all entry points for damp.
10. Assess Your Patio and Outdoor Surfaces
Algae and moss love damp, shaded surfaces. After a wet winter your patio could be a slipping hazard as much as an eyesore. Spring is the ideal moment to clean, treat, and repaint before you want to actually use the space.
💡 Siramico Tip: Work through this checklist room by room and note down what you find. Then tackle problems in order of priority damp and mould first, cosmetics second. Use our Contact page to speak to a specialist if you're unsure which product is right for your situation.
