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Serving Glendora, CA and surrounding areas. (626) 640-8959
Premier Glendora Sunrooms & Patios builds all season rooms, sunroom additions, and enclosed patio rooms for Upland homeowners. We have served San Bernardino County communities since 2015 and handle the City of Upland permit process from plan submittal through final inspection.
Upland summers hit 100 degrees Fahrenheit regularly and winters bring frost and below-40 nights near the foothills - an all season room here needs to handle both extremes to be worth the investment. We spec low-emissivity glass and climate control as standard on every build in this part of San Bernardino County. Visit our all season rooms page to see how we approach year-round performance in the Inland Empire climate.
Upland's ranch homes from the 1950s and 1960s were built with compact interior layouts on moderate lots. Adding a sunroom to the backyard connects the house to outdoor space and adds a finished room without the structural cost of expanding the original footprint. Many Upland owners use this space as a year-round reading room, hobby room, or informal dining area.
Many Upland homes have original concrete patios poured in the 1960s and 1970s that are candidates for enclosure. Before we build on any older slab, we check for clay soil movement and level as needed - skipping that step in Upland's expansive soil environment causes drainage and structural problems down the road.
Upland's summer sun is intense, and a shaded patio makes a meaningful difference in how much of the day you can spend outside. Aluminum lattice and solid patio covers are both practical here - solid covers block more heat, lattice covers allow more airflow and work well with ceiling fans. Either type is a cost-effective way to extend your usable backyard season.
North Upland homes near the foothills see colder winter nights than the rest of the city - frost and sub-40 temperatures are not unusual from December through February. A four season sunroom with insulated framing and double-pane glass keeps the room usable on those cold mornings while still letting in the mountain views that make north Upland properties desirable.
Santa Ana winds blow through Upland every fall and can gust past 50 mph. A properly framed screen room keeps windblown debris, leaves, and ash off the patio and out of the house during those events - a practical benefit that open patios simply cannot provide. Spring and fall evenings in Upland are some of the most comfortable in Southern California, and a screen room puts you outside for all of them.
The bulk of Upland's housing stock was built between the 1950s and 1970s, which means most homes in the city are now 50 to 70 years old. Ranch homes from this era have low-pitched roofs, stucco exteriors, and original concrete backyard slabs - all of which show their age in an Inland Empire climate. Upland sits on expansive clay soils that absorb winter rain and shrink in summer heat, and that repeated cycle is why you see cracked and tilted concrete on so many older properties. A contractor who has not worked in this soil type will sometimes frame a sunroom on a slab that is not level, which creates water pooling and structural problems within a few years. The City of Upland requires permits for sunroom additions, patio enclosures, and attached patio covers, and those requirements exist in part because proper anchoring and drainage design matters on these older slabs and soils.
Upland's climate adds another layer of complexity. Summer temperatures regularly exceed 95 degrees Fahrenheit and can push past 105 during heat waves. The Inland Empire location means there is no marine influence to moderate afternoon heat, so any glazed room that is not designed for the climate will become unusable from June through September. Santa Ana winds in the fall bring fire risk to the foothills north of the city and can cause sudden wind damage to poorly anchored structures. A contractor who works in Upland regularly designs for all of these conditions, not just the comfortable months.
Our crew works throughout Upland regularly, and we understand the local conditions that affect sunroom contractor work here. We pull permits through the City of Upland and are familiar with the plan check requirements for room additions and patio structures in San Bernardino County. Upland covers about 15 square miles and the housing character changes noticeably as you move from south to north.
The older neighborhoods near historic Euclid Avenue and the downtown corridor have some of the largest mature trees in the city - beautiful streets, but the roots from those trees get into older concrete slabs and drainage lines over time. That kind of site condition is something we check for before we plan any backyard project in these neighborhoods. North Upland, closer to Mount Baldy and the foothills, has newer subdivisions from the 1980s and 1990s with tile roofs and two-story layouts - different property types that need a different set of design decisions on attachment points and roofline integration. Foothill Boulevard runs east to west through the middle of the city and is the main commercial corridor most Upland residents use to orient themselves.
We also serve homeowners in neighboring communities. If you are in Arcadia or Claremont, we cover those areas as well and apply the same level of familiarity with local permit offices and housing stock.
Reach us by phone or through the contact form and we will respond within one business day to schedule a visit. You do not need plans or a budget number ready - just a general idea of what you are hoping to add to your property.
We visit your Upland property, assess the existing slab condition, roofline attachment points, and any drainage considerations from the clay soil, then provide a written scope and price. There is no obligation and no cost for this visit.
Once you approve the proposal, we submit plans to the City of Upland Building and Safety Division and order materials. City permit review typically takes two to four weeks - we keep you updated throughout so there are no surprises on the schedule.
Our crew builds the room, and we coordinate any required city inspections during construction and at completion. You receive a permitted, inspected project that is documented in city records - important for future sale or refinancing.
We serve all of Upland and handle the City of Upland permit process from start to finish. No obligations - just a free on-site assessment and a written estimate.
(626) 640-8959Upland is a city of roughly 80,000 people in San Bernardino County, sitting at the base of the San Gabriel Mountains in the western Inland Empire. The city has used the nickname "City of Gracious Living" for decades, and it shows in the tree-lined streets and mature residential neighborhoods that make up most of the city's footprint. Euclid Avenue runs through the heart of town - a wide, tree-lined boulevard with a planted median that is one of the most recognizable streets in the Inland Empire. The historic Upland Train Depot on A Street, built in 1906, anchors the downtown corridor and reflects the age of the city's oldest neighborhoods. Most of Upland's housing stock was built between the 1950s and 1980s, with single-family ranch homes dominating the mid-city and newer two-story subdivisions spread across the northern neighborhoods closer to the foothills. Learn more about the city at the Upland, California Wikipedia article.
Owner-occupancy in Upland is high - roughly 55 to 60 percent of housing units are owner-occupied, and the city has a strong sense of residential investment. Homeowners here tend to stay for years and make meaningful improvements to their properties rather than leaving deferred maintenance to pile up. We work regularly across the city and serve neighboring communities as well. Homeowners in Pomona to the south and Arcadia to the west are also in our service area - if you are near Upland but just outside the city limits, call us and we will confirm coverage for your address.
Full-service sunroom construction from foundation to finishing touches.
Learn MoreGet a free on-site assessment and written estimate. Our team knows Upland's housing stock, clay soils, and City of Upland permit process - call today and we will come to you.