San Diego home maintenance schedule

This San Diego home maintenance schedule is written for coastal North County homes. Pick your city, your distance from the ocean, and your build era. Then read the list for each season.

Tell it about your home
Read the seasonal list
Tick what you check

Safety boundary: this is a reminder list, not repair or emergency instruction. Based on this page, do not climb onto a roof. Do not enter a hot or wet attic. Do not open an electrical panel. Do not operate gas or water equipment you do not know, and do not service powered equipment. If anyone needs emergency help right now, call 911. For a suspected gas leak, follow SDG&E's official gas-safety guidance.

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About your home

Your city

Sets which water provider and permit route we show you.

How far from the ocean

Roughly, in a straight line. If you are unsure, leave it and we will show every item.

Roughly when it was built

On your deed, your insurance paperwork or the county assessor record.

Which part of the year

You can also jump between seasons with the links under the list.

Showing every item on the list. Pick your city, distance and build era to narrow it.

Any time of year

4 things worth having on paper before anything goes wrong. None of them costs money.

Find the main water shutoff and write down where it is. Have your water provider or a licensed plumber confirm the spot. Label the confirmed spot for the whole household. Based on this checklist, do not turn any valve that is unfamiliar or stuck. Do not turn one at the curb, or one the utility owns. Every home
Look behind the water heater for earthquake strapping. California law states that all new and replacement water heaters, and all existing residential water heaters, shall be braced, anchored, or strapped to resist falling or horizontal displacement due to earthquake motion. If yours has no straps, that is a finding you can act on today. Every homeCarries a legal citation
Take one photo of the water heater data plate and the pipes above it. Brand, model, serial and capacity in one photo. When a plumber asks what you have, the photo answers it. Two plumbers pricing the same photo are pricing the same job. Every home
Find the hardness number in your own water provider's latest report. Every provider publishes a yearly water quality report with a hardness line in it. That number is the one for your tap. Figures from other sites do not agree with each other for these cities. That is why this page does not print one. Your provider and its report are listed by city further down. Every homeSee your city below

Before the winter rains — September to November

The region's rain arrives in the cooler months. This is the window where a roof or drainage problem is still cheap.

From the ground, note blocked gutters. Note where each downspout lets out. Do not climb a ladder or roof based on this checklist. Take photos of overflow, blockage, or water let out near the foundation. Give the photos to the pro you call. Every home
From the ground, look at every metal flashing and roof penetration. Flashings, vent collars, and the metal around chimneys and skylights age first on a coastal roof. They are the metal parts sitting in salty damp air. Binoculars are safer than a ladder. Take a photo of anything rusty, lifted or open. Within about 5 miles of the coast
On a tile roof, look for slipped, cracked or chalk-stained tiles. Tile is a covering. The real waterproofing is the underlayment beneath it. Take photos of tiles out of line, broken corners, or white chalky stains. Ask a roofer about them. The underlayment is what the roofer will judge. Every home with a tile roof
Walk around the house. Check that the ground slopes away from it. Also clear every area drain and yard inlet you can find. A blocked inlet you never knew about is a common way water gets indoors in the first big storm. Every home
Check the seals on doors and windows on the weather side. On an older house, the weather side shows worn seals, dried caulk, and swollen wood first. Press the caulk with a fingernail. If it crumbles, it no longer seals anything. Built before about 1995
Check that attic and roof vents are open and unblocked. Inland North County runs hot and dry, not damp. Blocked vents show up two ways: an attic that stays hot long after sunset, and insulation pushed over the vent openings. Look with a flashlight before you close the hatch. More than about 5 miles inland

The rain months — December to March

Rain is the only free leak test you will get. These 4 are done while it rains, or the morning after.

After the first real storm, walk every ceiling and the tops of the walls. Look where the ceiling meets an outside wall, and above every window. A faint ring the size of a saucer today is a leak. By March it is a drywall repair. Take a photo of it, with the date. Every home
During rain, stay in the living space. Write down any ceiling or wall leak you can see. Do not enter a wet attic. Do not go near wet electrical equipment. Take a photo of the spot from inside. Let a qualified pro inspect the attic. Every home
Mark any spot in the yard that still holds water a day later. Standing water at the foundation or under a slab edge is a drainage question, not a plumbing one. Different trades quote the two. Knowing which you have saves a wasted call-out. Every home
Check under every sink and around the base of the water heater. Run a dry hand under each trap and along the floor at the heater. Damp, a stain, a crust, or a lifted patch of floor is worth noting. Write down what you found and where. Do not guess at the cause. Every home

Spring reset — March to May

The dry-out window. Rain damage still shows. Contractors are not yet booked out for summer. Salt from the winter still sits on everything.

Rinse the salt off exterior metal with plain fresh water. Railings, light fixtures, gate and door hardware, the garage door track and its springs, hose bibs, and any exposed fastener. Plain water and a soft brush. This is the cheapest upkeep a coastal house gets. Within about 5 miles of the coast
Wash the windows that face the sea. Note if the haze comes off. Film that washes away is deposit. Haze that stays after a real clean is a different problem and a different quote. Know which one you have before someone tells you. Within about 5 miles of the coast
Open and close every window, slider and gate that has metal hardware. Rollers, catches, locks and hinges near the coast stiffen before they fail. A slider that needs two hands this spring is the one that will not lock next winter. Note which ones and which rooms. Within about 5 miles of the coast
Press a thumb into exposed wood trim, fascia, eaves and siding. On an older house with original wood, damp mornings add up. Look for soft spots, dark stains, and paint that lifts in sheets. Mark every soft spot with tape before you call anyone. Then the quote covers the whole run, not just the one board they were shown. Built before about 1978
Run the sprinklers. Watch where the spray lands. Sprinklers that hit stucco, siding, a fence post, or an AC unit are watering the building. Spray on metal lands salt and minerals on it daily, near the beach or not. Every home
Turn the winter list into one written scope and get it priced. Every photo you took from December to March goes on one page. Every company prices that same page. In spring you can still pick who does the work, not just who is free. Every home

Marine layer and summer — May to August

Late spring and early summer bring long damp cloud to this coast, from night to midday. Locals call it May Gray and June Gloom. Damp that burns off by noon still spends half the day on your house.

From outside the unit, take photos of visible corrosion or damaged fins on the outdoor AC unit. Do not open, disconnect, rinse, or service powered equipment based on this checklist. Give the photos to a qualified HVAC pro. Within about 5 miles of the coast
Open the closets and cabinets that back onto an outside wall. A closed closet on a north or sea-facing wall stays damp through a gray two-week stretch. Look for a musty smell, cold patches, or dark specks on the back wall or on stored fabric. Within about 5 miles of the coast
Note strange water-heater noise or any leak you can see. Do not open the drain valve. Do not operate the drain valve based on this checklist. Hot water, pressure, and a valve that will not reseal can create a hazard. Report what you saw to a licensed plumber. Every home
Unscrew one faucet aerator and take down one showerhead. The screen is a free sample of what your water leaves all over the house. Note how long since you last cleaned it, and how much came off. That is a measurement you took, on your own fixtures. Every home
If the house has a softener or whole-house filter, check the salt and the filter date. Newer North County tracts often came with treatment gear fitted. Gear that has been out of salt or out of filter for a year is doing nothing. The household usually has no idea. Write the date on the housing when you change it. Built 1995 or later
Do not enter a hot attic. If the rooms you live in overheat, ask a qualified pro to check the ventilation. A hot attic can be unsafe to enter. This checklist cannot diagnose ventilation. Instead, note when and where the living space overheats. More than about 5 miles inland

What we checked, and where it came from

Water heater bracing — California, all 6 cities

Required by state law

Health and Safety Code section 19211 states that all new and replacement water heaters, and all existing residential water heaters, shall be braced, anchored, or strapped to resist falling or horizontal displacement due to earthquake motion. The same section also requires a seller of residential property to confirm in writing to the buyer that the requirement has been met.

California Legislative Information, HSC div. 13 pt. 3 ch. 2 art. 8 · checked Jul 25 2026 Read the statute

What counts as very hard water

More than 180 mg/L as calcium carbonate

The USGS scale runs in mg/L. 0 to 60 is soft. 61 to 120 is moderately hard. 121 to 180 is hard. More than 180 is very hard. Some water reports print grains per gallon instead. One grain per US gallon is about 17.1 mg/L by unit definition. So the very-hard line is about 10.5 grains per gallon. This is the scale, not a measurement of your water. Your number is in your own provider's report, listed by city below.

USGS Water Science School, Hardness of Water · checked Jul 25 2026 Read the USGS scale

Water-efficiency rebates — regional program

$85 washers · $40 per premium toilet · $2 per nozzle

Read on the SoCal Water$mart site: high-efficiency clothes washer rebates start at $85. Premium high-efficiency toilets using 1.1 gallons per flush or less are $40 per toilet. Qualified sprinkler nozzles are $2 per nozzle, with a minimum of 30 nozzles per site. The program states that rebates may vary by water agency and are based on the availability of funding. So confirm the current amount with your own provider before you buy anything. No per-square-foot turf figure was published on the page we read, so none is printed here.

SoCal Water$mart residential rebates · checked Jul 25 2026 Open the rebate site

Energy rebates for water heaters, heat pumps and thermostats

Not published here

We did not read a current energy-rebate program page for this build. So no amount, no program name, and no eligibility rule is printed. Our research file held several. Every one is left out for that reason. Energy rebates are also the fastest-moving figures on a page like this. If you see a number quoted elsewhere, confirm it on the utility's own page on the day you rely on it.

Where to check instead: your gas and electric utility's own rebate page. Also your water provider's page below.

What we did not publish, and why

Our internal research file for this page held a number of striking figures. Among them: an efficiency-loss percent for scaled water heaters, a shortened appliance lifespan, and a yearly household cost of hard water. Also a percent of heat lost to salt corrosion, a multiplier for how much faster coastal metal rusts, and a per-city grains-per-gallon table. Not one of them is on this page.

None could be traced back to a named source that we had read ourselves.
Where we did go looking, published hardness figures for the same city disagreed by a wide margin. That is exactly why we send you to your own provider instead.
A figure with no source is not a smaller version of a fact. It is a different kind of thing, and it does not belong next to the ones above.

If a figure here ever stops carrying a source and a date, treat that as a defect and tell us.

Your city: who publishes your water number, and who issues your permit

Permit rules differ across these 6 cities. So does the agency that bills you for water. Both matter before you hire anyone. Nothing below is a ranking. No city or company paid to appear.

Carlsbad

Water hardness at your address

Not published here

Carlsbad Municipal Water District publishes water quality info for the city. Carlsbad water quality

City of Carlsbad Utilities · checked Jul 25 2026

Permit route

Customer Self Service portal

Carlsbad states that some simple residential permits, with no plan check, can be pulled online through its Customer Self Service portal. It states this covers homeowners, property owners and licensed contractors. It states that portal account approval generally takes 1 to 2 business days.

Carlsbad online permit services

City of Carlsbad Community Development · checked Jul 25 2026

Encinitas

Water hardness at your address

Not published here — and Encinitas has two providers

San Dieguito Water District supplies Cardiff, Old Encinitas, Leucadia and part of New Encinitas. Other parts of the city are supplied by Olivenhain Municipal Water District. Check your water bill to see which one bills you before you read a hardness figure. The two are different systems.

San Dieguito Water District · Olivenhain Municipal Water District

City of Encinitas Utilities and Olivenhain MWD · checked Jul 25 2026

Permit route

Paperless — Customer Self Service only

The city states that Encinitas is paperless and uses the Customer Self Service portal for all permit submittals. It states that you must register before submitting, and that registration is approved within 24 business hours.

Encinitas building permits · CSS portal

City of Encinitas Development Services · checked Jul 25 2026

Escondido

Water hardness at your address

Not published here

The City of Escondido Water Division publishes a yearly water quality report. Escondido water quality reports

City of Escondido Utilities · checked Jul 25 2026

Permit route

Electronic plans only · water heaters must use the portal

The Building Division states that it only accepts plans in an electronic format. It states that plan review takes about 30 calendar days for each review cycle. It lists Residential Water Heater, Residential Re-Roof, Residential MEP Trade, Residential HVAC Mechanical, Residential Pre-Approved ADU, Solar and PV, and Commercial Sign among the permit types that must use its online portal.

Escondido Building Division · Escondido permit portal

City of Escondido Building Division · checked Jul 25 2026

Oceanside

Water hardness at your address

Not published here

Oceanside Water Utilities publishes a yearly water quality report. Oceanside water quality

City of Oceanside Water Utilities · checked Jul 25 2026

Permit route

eTRAKiT web permits

The city states that plans are not required for repairs or replacement of residential plumbing, electrical and mechanical systems. It states those permits can be pulled through its web permits system or at the counter. No plans needed does not mean no permit needed. Ask which you need for your job.

Oceanside building permits · eTRAKiT

City of Oceanside Building Division · checked Jul 25 2026

San Marcos

Water hardness at your address

Not published here

San Marcos homes are supplied by Vallecitos Water District, not by the city. Its yearly water quality reports are on the district site.

Vallecitos water quality reports

Vallecitos Water District · checked Jul 25 2026

Permit route

Moved to a new portal on January 2, 2025

The city states that as of January 2, 2025, all San Marcos building permits are on its Clariti portal. An older bookmark or an older how-to points at a system that is no longer in use.

San Marcos building permits

City of San Marcos Building and Code Compliance · checked Jul 25 2026

Vista

Water hardness at your address

Not published here

Vista homes are supplied by Vista Irrigation District, not by the city. The district publishes a Consumer Confidence Report each year.

Vista Irrigation District water quality

Vista Irrigation District · checked Jul 25 2026

Permit route

Cityworks online permitting

Vista takes permit applications through its Cityworks online permitting system. It states that you can request a building inspection online or by phone at 760.639.6016. You can also ask in person, at the Civic Center service counter on the first floor.

Vista Community Development · Cityworks permits

City of Vista Community Development · checked Jul 25 2026

Somewhere else in North County

Your water provider and permit route

Not checked for this tool

This build covers 6 cities. We have not read the water quality page or the permit page for anywhere else. So nothing is claimed here. The seasonal checklist above still applies. It is written for the coast and the climate, not for a city line.

Start with the water provider named on your own bill. Then call the building department for your city. In unincorporated areas, that is the county.

Turn a finding into a written scope

How this works

This schedule is built around salt air and the marine layer. It also covers mineral scale from the water supply, and the winter rain season. It is written for North County coastal homes. Every figure carries its source and the day that source was read. Where a figure belongs to your address, not the region, the page says so. It sends you to the agency that publishes it.

The checklist is written for coastal San Diego County conditions. Nothing is scored, ranked, or calculated. Every item is an action you take and something to look at. Every factual statement on this page carries its source and the date that source was read. Your city, your distance from the ocean, and your build era filter which items show. With JavaScript off, every item shows instead. Each one is labeled with the homes it applies to. Ticks are saved in this browser only. They are never sent anywhere.

What it can't tell you

It does not inspect your home. It does not diagnose a fault, price a repair, or tell you if you need a contractor. It does not know the water hardness at your address, your permit history, or what your HOA allows. Some figures could not be traced to a named source we had read ourselves. We left out all of them: efficiency-loss percents, appliance lifespans, yearly costs, and corrosion-rate multipliers. Those numbers are not on this page at all. A ticked box records that you looked, not that anything is sound.

San Diego home maintenance schedule

What we checked, and where it came from

What we did not publish, and why

Your city: who publishes your water number, and who issues your permit

Carlsbad

Encinitas

Escondido

Oceanside

San Marcos

Vista

Somewhere else in North County

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