Helical piers, driven down until they reach soil firm enough to carry a house, are the kind of fix Sunshine Foundation Repairs reaches for when a Los Angeles home has started to drop at one corner. That is the register of the whole operation: structural foundation work, the heavy and largely invisible kind, for houses across Los Angeles County.
This is a family-owned foundation contractor working the LA area, and its service list reads like a catalogue of everything that can go wrong under a California house. Sunshine Foundation Repairs handles inspection, repair, underpinning, slab work, leveling, seismic retrofitting, and, in the worst cases, full foundation replacement. It is a short menu, but every item on it is expensive and consequential, which is the nature of the trade.
Foundation trouble rarely announces itself politely. A door that suddenly sticks, a diagonal crack climbing a wall, a gap opening where the floor meets the baseboard, these are the everyday signs that send a homeowner searching, and they are the symptoms this company is built to read. Los Angeles sharpens the problem. Expansive clay soils that swell and shrink with the seasons, hillside lots, and the steady background risk of an earthquake all put stress on foundations that houses in gentler places never feel, and that is exactly the terrain a specialist local crew is built to read.
The repair work, from helical piers to seismic bracing
The core is structural. Sunshine Foundation Repairs groups its offering into the standard categories a foundation specialist keeps, and the depth of that list is the first sign this is a specialist and not a general contractor dabbling in concrete on the side.
That focus is the reassuring part. A firm that does only foundations sees the same failure modes week after week, and that pattern recognition is most of what separates a durable repair from one that reopens in two winters.
Inspection, underpinning, and slab repair
Most jobs start with an inspection, which Sunshine Foundation Repairs offers free, a low-commitment way for a worried owner to find out whether a new crack is cosmetic or structural. From there the work splits by severity. Underpinning and helical pier installation address a foundation that has already settled or is still moving, transferring the load down past the unstable topsoil to deeper, firmer ground.
The two are not interchangeable, and a competent inspection is what decides between them: helical piers screw in and can bear load almost immediately, while other underpinning methods build fresh support beneath an existing footing. Sunshine Foundation Repairs also handles slab repair and replacement for the cracked or heaved concrete common in the region, and home leveling with structural support to bring a sagging floor back toward true.
It is a methodical ladder, and it matches the way these problems actually escalate, from hairline crack to jammed door to a floor that visibly slopes.
Earthquake retrofitting and full replacement
Two services stand out for Southern California in particular. Earthquake retrofitting and seismic bracing, the bolting that ties a house to its foundation so it does not slide off during a quake, is close to essential here, and Sunshine Foundation Repairs cites training in the EBB Brace and Bolt program, the recognized standard behind that work.
At the far end sits full foundation replacement, the largest and most disruptive job on the list, the point past which patching stops being enough. A full replacement can mean lifting the structure, excavating, and pouring new footings, weeks of work with a household living around the disruption, which is why the free inspection and an honest severity call at the outset count for so much.
Financing is offered, which for a five-figure structural job is less a perk than a practical necessity for most households, and a sign the company expects work at that scale, not quick cosmetic patches.
Credentials, coverage, and the review math
The trust-building is stacked up front. Sunshine Foundation Repairs states a contractor's license number, holds Google Guaranteed status and an Angi Super Service Award, and makes a point of running in-house crews with no subcontractors, which in a trade where the fine print decides everything is a meaningful promise if it holds up on the job. Those badges are not decoration.
Google Guaranteed status is granted only after a background and license screen, and an Angi Super Service Award is tied to sustained review scores, so both are anchored to an outside check instead of being self-declared. In-house crews matter for the same reason: when one company answers for the whole job, there is no subcontractor to blame if the leveling comes out wrong.
Coverage is wide. Sunshine Foundation Repairs lists more than a hundred Los Angeles County communities, from Agoura Hills to Woodland Hills, taking in Long Beach, Pasadena, Santa Clarita, and Malibu, which is most of the county and then some.
The reviews are where a careful reader should slow down. Sunshine Foundation Repairs advertises more than 700 five-star reviews, and the independent record is strong without matching that figure cleanly. On the listings that clearly belong to the Northridge office of Sunshine Foundation Repairs, HomeAdvisor rates it 4.8 out of 5 and Houzz shows a straight 5, both genuinely good scores. Its Yelp page at the same address carries 443 reviews and close to a thousand photos, though no overall star rating surfaced in the search.
Muddying it a little, a few similarly named foundation outfits in other cities appear as well, and those could not be confirmed as the same company, so their ratings should not be quietly folded into the total. None of this makes the company look bad. A 4.8 and a straight 5 from two separate platforms is a solid independent showing for a foundation contractor. It just means the round 700-plus figure is an in-house tally across every channel, and a buyer is better off reading it as marketing and then leaning on the counts the outside sites actually publish.
Contact is easy to find for Sunshine Foundation Repairs. The site lists two phone numbers, an email, a main office in Northridge, and a second location in Harbor City, so there is a real address behind the name and more than one way to reach a person. For structural work, where a crew will be under your house for days, that physical footprint is worth more than a slick contact form on its own.
The site claims north of 700 five-star reviews, while the two independent scores that clearly attach to Sunshine Foundation Repairs are a 4.8 and a 5, and the largest verified review count tied to its own address stands at 443.






Important pages
Business address
Sunshine Foundation Repairs
18327 Napa St,
Northridge,
California
91325
United States
Contact details
Phone: (818) 492-4195