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Cambridge Pavers Home Additions & ADU: The West Covina Owner’s Guide
If you have Cambridge Pavers on your existing patio, walkway, or driveway and you’re planning a home addition or ADU in West Covina, the honest answer is this: those pavers usually can’t just be extended with new material and look right. Color batch differences, weathering, and discontinued paver lines mean matching old pavers to new ones takes a trained eye, not a trip to the hardware store. A Cambridge Pavers-compatible home addition or ADU project in West Covina typically runs $45,000 to $130,000 depending on square footage, foundation work, and whether we’re tying the new hardscape into existing paver lines or starting fresh. Most owners realize they have a problem when they see the seam, a slight color shift where the old pavers stop and the new work starts, and it reads like a scar across the yard.
Which Cambridge Pavers Models This Applies To

Cambridge Pavers manufactures several paver lines that show up across West Covina backyards, and each one behaves differently when you try to match it. The Ledgestone line has a tumbled, irregular edge that’s hard to pull and reset without chipping. Sherwood pavers have a cleft surface that weathers unevenly, so even pavers from the same pallet can drift in tone after three or four California summers. Maytrx and Hollandstone are more uniform, which makes matching easier, but color lot numbers still matter more than most homeowners expect.
Here’s the gotcha most people in West Covina don’t see coming: Cambridge Pavers stamps the lot number on the pallet wrap, not on the individual paver. Once the pallet wrap is gone, so is your reference. If you saved a photo of the pallet tag, that helps. If not, we measure the paver (Cambridge runs true to nominal sizing, but wear changes that) and compare surface texture against known samples. For additions and ADUs where we’re tying into an existing paver patio, we’ll usually recommend either a deliberate contrast border in a different Cambridge color (which reads as design, not mismatch) or relaying the original pavers and blending new stock at ratios that hide the transition.
One more thing worth knowing: Sawyer Remodel West Covina is an independent remodeling contractor. We install and work around Cambridge Pavers products but we’re not affiliated with Cambridge Pavers or its distributors. We buy through the same Southern California supply channels any contractor uses, which means we can usually get current Cambridge lines fast, but discontinued colors take longer and sometimes just aren’t available.
Styles & brands we work with







Signs Your Cambridge Pavers Home Additions & ADU Is Failing
Here’s what we actually see when we get called to West Covina homes for addition and ADU projects that are going sideways on the paver side:
- The new pavers don’t match the old ones, and it’s not subtle. Homeowners added on, the contractor grabbed “the same color” from a different lot, and now the seam looks like two different projects. This is the #1 reason people call us after the fact.
- Paver shifting or sinking near the addition foundation. West Covina’s clay-heavy soil expands and contracts with rain. If the base under old pavers was never compacted properly, new foundation work nearby makes the problem obvious within a season.
- Water pooling against the new stucco or siding. When an addition goes in without re-grading the paver surface, water runs toward the house instead of away. We see efflorescence and paver staining within six months in lower-lying West Covina lots.
- Edge restraints failing where old pavers meet new hardscape. Once the plastic or aluminum edging gives way, pavers start crawling outward. The edge looks wavy and gaps open up that trap water and weeds.
- Faded color from hard water and full sun. West Covina gets real UV exposure. Older Cambridge Pavers with factory sealant worn off look chalky next to new ones, and no amount of cleaning fixes the differential.
See the difference
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After
Before
After
Before
AfterReplacement Cost & What’s Included

For a Cambridge Pavers home addition or ADU project in West Covina, here’s the pricing reality:
| Scope | West Covina Installed Range |
|---|---|
| Home Addition (200 – 600 sq ft) | $45,000 – $130,000 |
| ADU Construction (full build) | $90,000 – $220,000 |
| Garage Conversion | $30,000 – $80,000 |
| Paver Patio Extension (tie-in work) | $3,500 – $11,000 |
What moves the number: whether the addition needs new foundation with rebar (almost always), whether city of West Covina requires a soils report, the linear feet of paver relocation or replacement, and how much of the existing paver base is still sound. We write the price before we start. That number includes tear-out, base prep, material, install, and haul-away. The only thing that changes it is if we find something genuinely hidden, like an old cesspool or undersized footer, and we document that before touching it.
Every project carries the 365-Day Done Right Promise in writing. If the paver work or the addition isn’t done right, we make it right. We also send photo updates before and after and give you a live arrival time. That’s how we run every job in West Covina under The Relay Standard.
DIY or Call Us?
Some things you can check yourself: walk the existing paver surface after rain and look for pooling. Take photos of any seams or color breaks. Find your original Cambridge Pavers receipts if you have them, because the lot number is worth its weight.
But here’s where DIY goes wrong in West Covina: pulling pavers, recompacting base, and tying new hardscape into a foundation line is not a weekend job. Get the slope wrong and water goes under your new addition. Get the base depth wrong and you’ll redo it in two years. And when the project involves a new structure, you’re dealing with city permits, foundation inspections, and utility locates. We’ve pulled permits all over West Covina, including projects in the South Hills area where tight lots mean every inch of grading and paver work matters, and we’d rather you call us before you start than after the first rain shows you where you went wrong.
Call (341) 217-4204 and we’ll walk the site with you. The estimate is free.
FAQs

How long do Cambridge Pavers last around a home addition or ADU in West Covina?
A properly installed Cambridge Pavers patio or walkway lasts 25 to 40 years in West Covina’s climate, but the base underneath matters more than the paver itself. Clay soil movement and poor drainage shorten that lifespan to under 15 years if the base wasn’t compacted right. Call (341) 217-4204 and we’ll give you an honest read on what you’re working with.
Can you repair a bad paver match instead of redoing the whole thing?
In most cases yes. We can pull and reset pavers at the transition, introduce a deliberate border or accent band in a complementary Cambridge color, or reblend stock to hide the seam. A full tear-out is rarely necessary just to fix a color mismatch. Call (341) 217-4204 for an exact quote.
How long does a home addition or ADU project take in West Covina?
A standard home addition runs 8 to 16 weeks depending on scope and city inspection scheduling. An ADU typically runs 4 to 7 months from permits to final. We give you a written schedule with milestones and photo updates so you’re never guessing.
Do you stock Cambridge Pavers or do you have to order them?
We keep common Cambridge Pavers colors and sizes on hand for tie-in and repair work, but most addition and ADU projects use a mix of stocked and ordered material. Discontinued colors require sourcing from regional suppliers, and sometimes they’re simply unavailable. We’ll tell you upfront what’s realistic.
Written by Luca Romano, Owner, Sawyer Remodel West Covina at Sawyer Remodel West Covina, serving West Covina and nearby areas.


